diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7fff5f035a..e4f6391de73 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Unversioned
 
+- Major: Add option to show pronouns in user card. (#5442)
 - Major: Release plugins alpha. (#5288)
 - Major: Improve high-DPI support on Windows. (#4868, #5391)
 - Minor: Removed the Ctrl+Shift+L hotkey for toggling the "live only" tab visibility state. (#5530)
diff --git a/benchmarks/src/RecentMessages.cpp b/benchmarks/src/RecentMessages.cpp
index 24ebd127f82..994c8885857 100644
--- a/benchmarks/src/RecentMessages.cpp
+++ b/benchmarks/src/RecentMessages.cpp
@@ -11,6 +11,7 @@
 #include "providers/chatterino/ChatterinoBadges.hpp"
 #include "providers/ffz/FfzBadges.hpp"
 #include "providers/ffz/FfzEmotes.hpp"
+#include "providers/pronouns/Pronouns.hpp"
 #include "providers/recentmessages/Impl.hpp"
 #include "providers/seventv/SeventvBadges.hpp"
 #include "providers/seventv/SeventvEmotes.hpp"
@@ -110,6 +111,11 @@ class MockApplication : public mock::BaseApplication
         return &this->linkResolver;
     }
 
+    pronouns::Pronouns *getPronouns() override
+    {
+        return &this->pronouns;
+    }
+
     AccountController accounts;
     Emotes emotes;
     mock::UserDataController userData;
@@ -124,6 +130,7 @@ class MockApplication : public mock::BaseApplication
     FfzEmotes ffzEmotes;
     SeventvEmotes seventvEmotes;
     DisabledStreamerMode streamerMode;
+    pronouns::Pronouns pronouns;
 };
 
 std::optional<QJsonDocument> tryReadJsonFile(const QString &path)
diff --git a/mocks/include/mocks/EmptyApplication.hpp b/mocks/include/mocks/EmptyApplication.hpp
index dae2314be9b..336e6a1a773 100644
--- a/mocks/include/mocks/EmptyApplication.hpp
+++ b/mocks/include/mocks/EmptyApplication.hpp
@@ -264,6 +264,13 @@ class EmptyApplication : public IApplication
         return nullptr;
     }
 
+    pronouns::Pronouns *getPronouns() override
+    {
+        assert(false && "EmptyApplication::getPronouns was called without "
+                        "being initialized");
+        return nullptr;
+    }
+
     QTemporaryDir settingsDir;
     Paths paths_;
     Args args_;
diff --git a/src/Application.cpp b/src/Application.cpp
index 45abc56baf7..7d26285f740 100644
--- a/src/Application.cpp
+++ b/src/Application.cpp
@@ -15,6 +15,7 @@
 #include "providers/bttv/BttvEmotes.hpp"
 #include "providers/ffz/FfzEmotes.hpp"
 #include "providers/links/LinkResolver.hpp"
+#include "providers/pronouns/Pronouns.hpp"
 #include "providers/seventv/SeventvAPI.hpp"
 #include "providers/seventv/SeventvEmotes.hpp"
 #include "providers/twitch/TwitchBadges.hpp"
@@ -178,6 +179,7 @@ Application::Application(Settings &_settings, const Paths &paths,
     , linkResolver(new LinkResolver)
     , streamerMode(new StreamerMode)
     , twitchUsers(new TwitchUsers)
+    , pronouns(std::make_shared<pronouns::Pronouns>())
 #ifdef CHATTERINO_HAVE_PLUGINS
     , plugins(new PluginController(paths))
 #endif
@@ -565,6 +567,14 @@ SeventvEventAPI *Application::getSeventvEventAPI()
     return this->seventvEventAPI.get();
 }
 
+pronouns::Pronouns *Application::getPronouns()
+{
+    // pronouns::Pronouns handles its own locks, so we don't need to assert that this is called in the GUI thread
+    assert(this->pronouns);
+
+    return this->pronouns.get();
+}
+
 void Application::save()
 {
     this->commands->save();
diff --git a/src/Application.hpp b/src/Application.hpp
index 614d72db6a2..92f0dd7526f 100644
--- a/src/Application.hpp
+++ b/src/Application.hpp
@@ -54,6 +54,9 @@ class SeventvEventAPI;
 class ILinkResolver;
 class IStreamerMode;
 class ITwitchUsers;
+namespace pronouns {
+    class Pronouns;
+}  // namespace pronouns
 
 class IApplication
 {
@@ -105,6 +108,7 @@ class IApplication
     virtual ILinkResolver *getLinkResolver() = 0;
     virtual IStreamerMode *getStreamerMode() = 0;
     virtual ITwitchUsers *getTwitchUsers() = 0;
+    virtual pronouns::Pronouns *getPronouns() = 0;
 };
 
 class Application : public IApplication
@@ -169,6 +173,7 @@ class Application : public IApplication
     std::unique_ptr<ILinkResolver> linkResolver;
     std::unique_ptr<IStreamerMode> streamerMode;
     std::unique_ptr<ITwitchUsers> twitchUsers;
+    std::shared_ptr<pronouns::Pronouns> pronouns;
 #ifdef CHATTERINO_HAVE_PLUGINS
     std::unique_ptr<PluginController> plugins;
 #endif
@@ -215,6 +220,7 @@ class Application : public IApplication
     FfzEmotes *getFfzEmotes() override;
     SeventvEmotes *getSeventvEmotes() override;
     SeventvEventAPI *getSeventvEventAPI() override;
+    pronouns::Pronouns *getPronouns() override;
 
     ILinkResolver *getLinkResolver() override;
     IStreamerMode *getStreamerMode() override;
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9757ed3e1cc..db6b1551dcb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -348,6 +348,13 @@ set(SOURCE_FILES
         providers/liveupdates/BasicPubSubManager.hpp
         providers/liveupdates/BasicPubSubWebsocket.hpp
 
+        providers/pronouns/Pronouns.cpp
+        providers/pronouns/Pronouns.hpp
+        providers/pronouns/UserPronouns.cpp
+        providers/pronouns/UserPronouns.hpp
+        providers/pronouns/alejo/PronounsAlejoApi.cpp
+        providers/pronouns/alejo/PronounsAlejoApi.hpp
+
         providers/recentmessages/Api.cpp
         providers/recentmessages/Api.hpp
         providers/recentmessages/Impl.cpp
diff --git a/src/common/QLogging.cpp b/src/common/QLogging.cpp
index a8cd8285d55..554fc48a607 100644
--- a/src/common/QLogging.cpp
+++ b/src/common/QLogging.cpp
@@ -37,6 +37,7 @@ Q_LOGGING_CATEGORY(chatterinoNotification, "chatterino.notification",
                    logThreshold);
 Q_LOGGING_CATEGORY(chatterinoImageuploader, "chatterino.imageuploader",
                    logThreshold);
+Q_LOGGING_CATEGORY(chatterinoPronouns, "chatterino.pronouns", logThreshold);
 Q_LOGGING_CATEGORY(chatterinoPubSub, "chatterino.pubsub", logThreshold);
 Q_LOGGING_CATEGORY(chatterinoRecentMessages, "chatterino.recentmessages",
                    logThreshold);
diff --git a/src/common/QLogging.hpp b/src/common/QLogging.hpp
index b814bb33246..f4da615cdd9 100644
--- a/src/common/QLogging.hpp
+++ b/src/common/QLogging.hpp
@@ -28,6 +28,7 @@ Q_DECLARE_LOGGING_CATEGORY(chatterinoMessage);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoNativeMessage);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoNetwork);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoNotification);
+Q_DECLARE_LOGGING_CATEGORY(chatterinoPronouns);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoPubSub);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoRecentMessages);
 Q_DECLARE_LOGGING_CATEGORY(chatterinoSettings);
diff --git a/src/providers/pronouns/Pronouns.cpp b/src/providers/pronouns/Pronouns.cpp
new file mode 100644
index 00000000000..8b37303dc19
--- /dev/null
+++ b/src/providers/pronouns/Pronouns.cpp
@@ -0,0 +1,64 @@
+#include "providers/pronouns/Pronouns.hpp"
+
+#include "Application.hpp"
+#include "common/QLogging.hpp"
+#include "providers/pronouns/alejo/PronounsAlejoApi.hpp"
+#include "providers/pronouns/UserPronouns.hpp"
+
+#include <mutex>
+#include <string>
+#include <unordered_map>
+
+namespace chatterino::pronouns {
+
+void Pronouns::fetch(const QString &username,
+                     const std::function<void(UserPronouns)> &callbackSuccess,
+                     const std::function<void()> &callbackFail)
+{
+    // Only fetch pronouns if we haven't fetched before.
+    {
+        std::shared_lock lock(this->mutex);
+
+        auto iter = this->saved.find(username);
+        if (iter != this->saved.end())
+        {
+            callbackSuccess(iter->second);
+            return;
+        }
+    }  // unlock mutex
+
+    qCDebug(chatterinoPronouns)
+        << "Fetching pronouns from alejo.io for " << username;
+
+    alejoApi.fetch(username, [this, callbackSuccess, callbackFail,
+                              username](std::optional<UserPronouns> result) {
+        if (result.has_value())
+        {
+            {
+                std::unique_lock lock(this->mutex);
+                this->saved[username] = *result;
+            }  // unlock mutex
+            qCDebug(chatterinoPronouns)
+                << "Adding pronouns " << result->format() << " for user "
+                << username;
+            callbackSuccess(*result);
+        }
+        else
+        {
+            callbackFail();
+        }
+    });
+}
+
+std::optional<UserPronouns> Pronouns::getForUsername(const QString &username)
+{
+    std::shared_lock lock(this->mutex);
+    auto it = this->saved.find(username);
+    if (it != this->saved.end())
+    {
+        return {it->second};
+    }
+    return {};
+}
+
+}  // namespace chatterino::pronouns
diff --git a/src/providers/pronouns/Pronouns.hpp b/src/providers/pronouns/Pronouns.hpp
new file mode 100644
index 00000000000..adf2439e2eb
--- /dev/null
+++ b/src/providers/pronouns/Pronouns.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+#include "providers/pronouns/alejo/PronounsAlejoApi.hpp"
+#include "providers/pronouns/UserPronouns.hpp"
+
+#include <optional>
+#include <shared_mutex>
+#include <unordered_map>
+
+namespace chatterino::pronouns {
+
+class Pronouns
+{
+public:
+    Pronouns() = default;
+
+    void fetch(const QString &username,
+               const std::function<void(UserPronouns)> &callbackSuccess,
+               const std::function<void()> &callbackFail);
+
+    // Retrieve cached pronouns for user.
+    std::optional<UserPronouns> getForUsername(const QString &username);
+
+private:
+    // mutex for editing the saved map.
+    std::shared_mutex mutex;
+    // Login name -> Pronouns
+    std::unordered_map<QString, UserPronouns> saved;
+    AlejoApi alejoApi;
+};
+}  // namespace chatterino::pronouns
diff --git a/src/providers/pronouns/UserPronouns.cpp b/src/providers/pronouns/UserPronouns.cpp
new file mode 100644
index 00000000000..6c093a723ef
--- /dev/null
+++ b/src/providers/pronouns/UserPronouns.cpp
@@ -0,0 +1,24 @@
+#include "providers/pronouns/UserPronouns.hpp"
+
+#include <QString>
+
+#include <optional>
+
+namespace chatterino::pronouns {
+
+UserPronouns::UserPronouns(QString pronouns)
+    : representation{!pronouns.isEmpty() ? std::move(pronouns) : QString()}
+{
+}
+
+bool UserPronouns::isUnspecified() const
+{
+    return this->representation.isEmpty();
+}
+
+UserPronouns::operator bool() const
+{
+    return !isUnspecified();
+}
+
+}  // namespace chatterino::pronouns
diff --git a/src/providers/pronouns/UserPronouns.hpp b/src/providers/pronouns/UserPronouns.hpp
new file mode 100644
index 00000000000..5ce5b9c88b2
--- /dev/null
+++ b/src/providers/pronouns/UserPronouns.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <QString>
+
+namespace chatterino::pronouns {
+
+class UserPronouns
+{
+public:
+    UserPronouns() = default;
+    UserPronouns(QString pronouns);
+
+    QString format() const
+    {
+        if (isUnspecified())
+        {
+            return "unspecified";
+        }
+        return this->representation;
+    }
+
+    bool isUnspecified() const;
+
+    /// True, iff the pronouns are not unspecified.
+    operator bool() const;
+
+private:
+    QString representation;
+};
+
+}  // namespace chatterino::pronouns
diff --git a/src/providers/pronouns/alejo/PronounsAlejoApi.cpp b/src/providers/pronouns/alejo/PronounsAlejoApi.cpp
new file mode 100644
index 00000000000..31e606016e0
--- /dev/null
+++ b/src/providers/pronouns/alejo/PronounsAlejoApi.cpp
@@ -0,0 +1,124 @@
+#include "providers/pronouns/alejo/PronounsAlejoApi.hpp"
+
+#include "common/network/NetworkRequest.hpp"
+#include "common/network/NetworkResult.hpp"
+#include "common/QLogging.hpp"
+#include "providers/pronouns/UserPronouns.hpp"
+
+namespace chatterino::pronouns {
+
+UserPronouns AlejoApi::parse(const QJsonObject &object)
+{
+    if (!this->pronounsFromId.has_value())
+    {
+        return {};
+    }
+
+    auto pronoun = object["pronoun_id"];
+
+    if (!pronoun.isString())
+    {
+        return {};
+    }
+
+    auto pronounStr = pronoun.toString();
+    std::shared_lock lock(this->mutex);
+    auto iter = this->pronounsFromId->find(pronounStr);
+    if (iter != this->pronounsFromId->end())
+    {
+        return {iter->second};
+    }
+    return {};
+}
+
+AlejoApi::AlejoApi()
+{
+    std::shared_lock lock(this->mutex);
+    if (this->pronounsFromId)
+    {
+        return;
+    }
+
+    qCDebug(chatterinoPronouns) << "Fetching available pronouns for alejo.io";
+    NetworkRequest(AlejoApi::API_URL + AlejoApi::API_PRONOUNS)
+        .concurrent()
+        .onSuccess([this](const auto &result) {
+            auto object = result.parseJson();
+            if (object.isEmpty())
+            {
+                return;
+            }
+
+            std::unique_lock lock(this->mutex);
+            this->pronounsFromId = {std::unordered_map<QString, QString>()};
+            for (auto const &pronounId : object.keys())
+            {
+                if (!object[pronounId].isObject())
+                {
+                    continue;
+                };
+
+                const auto pronounObj = object[pronounId].toObject();
+
+                if (!pronounObj["subject"].isString())
+                {
+                    continue;
+                }
+
+                QString pronouns = pronounObj["subject"].toString();
+
+                auto singular = pronounObj["singular"];
+                if (singular.isBool() && !singular.toBool() &&
+                    pronounObj["object"].isString())
+                {
+                    pronouns += "/" + pronounObj["object"].toString();
+                }
+
+                this->pronounsFromId->insert_or_assign(pronounId,
+                                                       pronouns.toLower());
+            }
+        })
+        .execute();
+}
+
+void AlejoApi::fetch(const QString &username,
+                     std::function<void(std::optional<UserPronouns>)> onDone)
+{
+    bool havePronounList{true};
+    {
+        std::shared_lock lock(this->mutex);
+        havePronounList = this->pronounsFromId.has_value();
+    }  // unlock mutex
+
+    if (!havePronounList)
+    {
+        // Pronoun list not available yet, just fail and try again next time.
+        onDone({});
+        return;
+    }
+
+    NetworkRequest(AlejoApi::API_URL + AlejoApi::API_USERS + "/" + username)
+        .concurrent()
+        .onSuccess([this, username, onDone](const auto &result) {
+            auto object = result.parseJson();
+            auto parsed = this->parse(object);
+            onDone({parsed});
+        })
+        .onError([onDone, username](auto result) {
+            auto status = result.status();
+            if (status.has_value() && status == 404)
+            {
+                // Alejo returns 404 if the user has no pronouns set.
+                // Return unspecified.
+                onDone({UserPronouns()});
+                return;
+            }
+            qCWarning(chatterinoPronouns)
+                << "alejo.io returned " << status.value_or(-1)
+                << " when fetching pronouns for " << username;
+            onDone({});
+        })
+        .execute();
+}
+
+}  // namespace chatterino::pronouns
diff --git a/src/providers/pronouns/alejo/PronounsAlejoApi.hpp b/src/providers/pronouns/alejo/PronounsAlejoApi.hpp
new file mode 100644
index 00000000000..a6e82c9bfac
--- /dev/null
+++ b/src/providers/pronouns/alejo/PronounsAlejoApi.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "providers/pronouns/UserPronouns.hpp"
+
+#include <QJsonObject>
+#include <QString>
+
+#include <mutex>
+#include <optional>
+#include <shared_mutex>
+
+namespace chatterino::pronouns {
+
+class AlejoApi
+{
+public:
+    explicit AlejoApi();
+    /** Fetches pronouns from the alejo.io API for a username and calls onDone when done.
+        onDone can be invoked from any thread. The argument is std::nullopt if and only if the request failed.
+     */
+    void fetch(const QString &username,
+               std::function<void(std::optional<UserPronouns>)> onDone);
+
+private:
+    std::shared_mutex mutex;
+    /** A map from alejo.io ids to human readable representation like theythem -> they/them, other -> other. */
+    std::optional<std::unordered_map<QString, QString>> pronounsFromId =
+        std::nullopt;
+    UserPronouns parse(const QJsonObject &object);
+    inline static const QString API_URL = "https://api.pronouns.alejo.io/v1";
+    inline static const QString API_USERS = "/users";
+    inline static const QString API_PRONOUNS = "/pronouns";
+};
+
+}  // namespace chatterino::pronouns
diff --git a/src/singletons/Settings.hpp b/src/singletons/Settings.hpp
index 39769ad9bf5..e787dcb0fc2 100644
--- a/src/singletons/Settings.hpp
+++ b/src/singletons/Settings.hpp
@@ -555,6 +555,7 @@ class Settings
     BoolSetting informOnTabVisibilityToggle = {"/misc/askOnTabVisibilityToggle",
                                                true};
     BoolSetting lockNotebookLayout = {"/misc/lockNotebookLayout", false};
+    BoolSetting showPronouns = {"/misc/showPronouns", false};
 
     /// UI
 
diff --git a/src/widgets/dialogs/UserInfoPopup.cpp b/src/widgets/dialogs/UserInfoPopup.cpp
index 4703cac763a..6aac79d03b3 100644
--- a/src/widgets/dialogs/UserInfoPopup.cpp
+++ b/src/widgets/dialogs/UserInfoPopup.cpp
@@ -11,6 +11,7 @@
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "providers/IvrApi.hpp"
+#include "providers/pronouns/Pronouns.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
@@ -24,6 +25,7 @@
 #include "util/Clipboard.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
+#include "util/PostToThread.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/EffectLabel.hpp"
 #include "widgets/helper/InvisibleSizeGrip.hpp"
@@ -47,6 +49,9 @@ constexpr QStringView TEXT_CREATED = u"Created: %1";
 constexpr QStringView TEXT_TITLE = u"%1's Usercard - #%2";
 constexpr QStringView TEXT_USER_ID = u"ID: ";
 constexpr QStringView TEXT_UNAVAILABLE = u"(not available)";
+constexpr QStringView TEXT_PRONOUNS = u"Pronouns: %1";
+constexpr QStringView TEXT_UNSPECIFIED = u"(unspecified)";
+constexpr QStringView TEXT_LOADING = u"(loading...)";
 
 using namespace chatterino;
 
@@ -369,6 +374,11 @@ UserInfoPopup::UserInfoPopup(bool closeAutomatically, Split *split)
             }
 
             // items on the left
+            if (getSettings()->showPronouns)
+            {
+                vbox.emplace<Label>(TEXT_PRONOUNS.arg(TEXT_LOADING))
+                    .assign(&this->ui_.pronounsLabel);
+            }
             vbox.emplace<Label>(TEXT_FOLLOWERS.arg(""))
                 .assign(&this->ui_.followerCountLabel);
             vbox.emplace<Label>(TEXT_CREATED.arg(""))
@@ -948,6 +958,43 @@ void UserInfoPopup::updateUserData()
                 }
             },
             [] {});
+
+        // get pronouns
+        if (getSettings()->showPronouns)
+        {
+            getApp()->getPronouns()->fetch(
+                user.login,
+                [this, hack](const auto pronouns) {
+                    runInGuiThread([this, hack,
+                                    pronouns = std::move(pronouns)]() {
+                        if (!hack.lock() || this->ui_.pronounsLabel == nullptr)
+                        {
+                            return;
+                        }
+                        if (!pronouns.isUnspecified())
+                        {
+                            this->ui_.pronounsLabel->setText(
+                                TEXT_PRONOUNS.arg(pronouns.format()));
+                        }
+                        else
+                        {
+                            this->ui_.pronounsLabel->setText(
+                                TEXT_PRONOUNS.arg(TEXT_UNSPECIFIED));
+                        }
+                    });
+                },
+                [this, hack]() {
+                    runInGuiThread([this, hack]() {
+                        qCWarning(chatterinoTwitch) << "Error getting pronouns";
+                        if (!hack.lock())
+                        {
+                            return;
+                        }
+                        this->ui_.pronounsLabel->setText(
+                            TEXT_PRONOUNS.arg(TEXT_UNSPECIFIED));
+                    });
+                });
+        }
     };
 
     if (!this->userId_.isEmpty())
diff --git a/src/widgets/dialogs/UserInfoPopup.hpp b/src/widgets/dialogs/UserInfoPopup.hpp
index cff57fdaf3a..e5e68979c85 100644
--- a/src/widgets/dialogs/UserInfoPopup.hpp
+++ b/src/widgets/dialogs/UserInfoPopup.hpp
@@ -73,6 +73,7 @@ class UserInfoPopup final : public DraggablePopup
 
         Label *nameLabel = nullptr;
         Label *localizedNameLabel = nullptr;
+        Label *pronounsLabel = nullptr;
         Label *followerCountLabel = nullptr;
         Label *createdDateLabel = nullptr;
         Label *userIDLabel = nullptr;
diff --git a/src/widgets/settingspages/GeneralPage.cpp b/src/widgets/settingspages/GeneralPage.cpp
index 0b9f107ee25..01ae9515bd5 100644
--- a/src/widgets/settingspages/GeneralPage.cpp
+++ b/src/widgets/settingspages/GeneralPage.cpp
@@ -1029,6 +1029,10 @@ void GeneralPage::initLayout(GeneralPageView &layout)
                        false,
                        "Make all clickable links lowercase to deter "
                        "phishing attempts.");
+    layout.addCheckbox(
+        "Show user's pronouns in user card", s.showPronouns, false,
+        "Shows users' pronouns in their user card. "
+        "Pronouns are retrieved from alejo.io when the user card is opened.");
     layout.addCheckbox("Bold @usernames", s.boldUsernames, false,
                        "Bold @mentions to make them more noticable.");
     layout.addCheckbox("Color @usernames", s.colorUsernames, false,