diff --git a/frontend/src/i18n/lang/en.json b/frontend/src/i18n/lang/en.json
index 03e7707db..d42a7f32e 100644
--- a/frontend/src/i18n/lang/en.json
+++ b/frontend/src/i18n/lang/en.json
@@ -99,7 +99,8 @@
         "defaultView": "Default view",
         "timezone": "Time zone",
         "overdueTasksRemindersTime": "Overdue tasks reminder email time",
-        "filterUsedOnOverview": "Saved filter used on the overview page"
+        "filterUsedOnOverview": "Saved filter used on the overview page",
+        "externalUserNameChange": "Your name is managed by your login provider ({provider}). To change it, please update it there instead."
       },
       "totp": {
         "title": "Two Factor Authentication",
diff --git a/frontend/src/views/user/settings/General.vue b/frontend/src/views/user/settings/General.vue
index b982980f9..b59718152 100644
--- a/frontend/src/views/user/settings/General.vue
+++ b/frontend/src/views/user/settings/General.vue
@@ -8,17 +8,26 @@
 			<label
 				class="label"
 				:for="`newName${id}`"
-			>{{ $t('user.settings.general.name') }}</label>
+			>
+				{{ $t('user.settings.general.name') }}
+			</label>
 			<div class="control">
 				<input
 					:id="`newName${id}`"
 					v-model="settings.name"
+					:disabled="isExternalUser"
 					class="input"
 					:placeholder="$t('user.settings.general.newName')"
 					type="text"
 					@keyup.enter="updateSettings"
 				>
 			</div>
+			<p
+				v-if="isExternalUser"
+				class="help"
+			>
+				{{ $t('user.settings.general.externalUserNameChange', {provider: authStore.info.authProvider}) }}
+			</p>
 		</div>
 		<div class="field">
 			<label class="label">
@@ -288,6 +297,8 @@ const availableLanguageOptions = ref(
 		.sort((a, b) => a.title.localeCompare(b.title)),
 )
 
+const isExternalUser = computed(() => !authStore.info.isLocalUser)
+
 watch(
 	() => authStore.settings,
 	() => {
diff --git a/pkg/modules/auth/openid/openid.go b/pkg/modules/auth/openid/openid.go
index f1fcc06a1..784600baf 100644
--- a/pkg/modules/auth/openid/openid.go
+++ b/pkg/modules/auth/openid/openid.go
@@ -76,6 +76,19 @@ func (p *Provider) setOicdProvider() (err error) {
 	return err
 }
 
+func (p *Provider) Issuer() (issuerURL string, err error) {
+	type Issuer struct {
+		Issuer string `json:"issuer"`
+	}
+
+	iss := &Issuer{}
+	err = p.openIDProvider.Claims(iss)
+	if err != nil {
+		return "", err
+	}
+	return iss.Issuer, nil
+}
+
 // HandleCallback handles the auth request callback after redirecting from the provider with an auth code
 // @Summary Authenticate a user with OpenID Connect
 // @Description After a redirect from the OpenID Connect provider to the frontend has been made with the authentication `code`, this endpoint can be used to obtain a jwt token for that user and thus log them in.
diff --git a/pkg/routes/api/v1/user_show.go b/pkg/routes/api/v1/user_show.go
index f902df5bc..f5f714b38 100644
--- a/pkg/routes/api/v1/user_show.go
+++ b/pkg/routes/api/v1/user_show.go
@@ -20,6 +20,8 @@ import (
 	"net/http"
 	"time"
 
+	"code.vikunja.io/api/pkg/modules/auth/openid"
+
 	"code.vikunja.io/api/pkg/user"
 
 	"code.vikunja.io/api/pkg/models"
@@ -36,6 +38,7 @@ type UserWithSettings struct {
 	Settings            *UserSettings `json:"settings"`
 	DeletionScheduledAt time.Time     `json:"deletion_scheduled_at"`
 	IsLocalUser         bool          `json:"is_local_user"`
+	AuthProvider        string        `json:"auth_provider"`
 }
 
 // UserShow gets all information about the current user
@@ -82,5 +85,21 @@ func UserShow(c echo.Context) error {
 		IsLocalUser:         u.Issuer == user.IssuerLocal,
 	}
 
+	providers, err := openid.GetAllProviders()
+	if err != nil {
+		return handler.HandleHTTPError(err)
+	}
+
+	for _, provider := range providers {
+		issuerURL, err := provider.Issuer()
+		if err != nil {
+			return handler.HandleHTTPError(err)
+		}
+		if issuerURL == u.Issuer {
+			us.AuthProvider = provider.Name
+			break
+		}
+	}
+
 	return c.JSON(http.StatusOK, us)
 }