diff --git a/.gitignore b/.gitignore
index db3eaf3e3a..20d0d22d3f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 bin
 dist
 _output
+.idea
+.DS_Store
\ No newline at end of file
diff --git a/connector/connector.go b/connector/connector.go
index edd7fa5706..19eed05497 100644
--- a/connector/connector.go
+++ b/connector/connector.go
@@ -27,8 +27,8 @@ type Identity struct {
 	Username      string
 	Email         string
 	EmailVerified bool
-
-	Groups []string
+	Groups        []string
+	Locale        string
 
 	// ConnectorData holds data used by the connector for subsequent requests after initial
 	// authentication, such as access tokens for upstream provides.
diff --git a/connector/oidc/oidc.go b/connector/oidc/oidc.go
index 4a64df8b60..563aae112f 100644
--- a/connector/oidc/oidc.go
+++ b/connector/oidc/oidc.go
@@ -259,11 +259,14 @@ func (c *oidcConnector) HandleCallback(s connector.Scopes, r *http.Request) (ide
 		}
 	}
 
+	locale, _ := claims["locale"].(string)
+
 	identity = connector.Identity{
 		UserID:        idToken.Subject,
 		Username:      name,
 		Email:         email,
 		EmailVerified: emailVerified,
+		Locale:        locale,
 	}
 
 	if c.userIDKey != "" {
diff --git a/server/handlers.go b/server/handlers.go
index 9bff36ee84..fb74a398de 100644
--- a/server/handlers.go
+++ b/server/handlers.go
@@ -484,6 +484,7 @@ func (s *Server) finalizeLogin(identity connector.Identity, authReq storage.Auth
 		Email:         identity.Email,
 		EmailVerified: identity.EmailVerified,
 		Groups:        identity.Groups,
+		Locale:        identity.Locale,
 	}
 
 	updater := func(a storage.AuthRequest) (storage.AuthRequest, error) {
@@ -974,6 +975,7 @@ func (s *Server) handleRefreshToken(w http.ResponseWriter, r *http.Request, clie
 		EmailVerified: refresh.Claims.EmailVerified,
 		Groups:        refresh.Claims.Groups,
 		ConnectorData: refresh.ConnectorData,
+		Locale:        refresh.Claims.Locale,
 	}
 
 	// Can the connector refresh the identity? If so, attempt to refresh the data
@@ -997,6 +999,7 @@ func (s *Server) handleRefreshToken(w http.ResponseWriter, r *http.Request, clie
 		Email:         ident.Email,
 		EmailVerified: ident.EmailVerified,
 		Groups:        ident.Groups,
+		Locale:        ident.Locale,
 	}
 
 	accessToken, err := s.newAccessToken(client.ID, claims, scopes, refresh.Nonce, refresh.ConnectorID)
diff --git a/server/oauth2.go b/server/oauth2.go
index 6104b54988..1bfa6c7952 100644
--- a/server/oauth2.go
+++ b/server/oauth2.go
@@ -253,10 +253,10 @@ type idTokenClaims struct {
 
 	AccessTokenHash string `json:"at_hash,omitempty"`
 
-	Email         string `json:"email,omitempty"`
-	EmailVerified *bool  `json:"email_verified,omitempty"`
-
-	Groups []string `json:"groups,omitempty"`
+	Email         string   `json:"email,omitempty"`
+	EmailVerified *bool    `json:"email_verified,omitempty"`
+	Groups        []string `json:"groups,omitempty"`
+	Locale        string   `json:"locale,omitempty"`
 
 	Name string `json:"name,omitempty"`
 
@@ -329,6 +329,7 @@ func (s *Server) newIDToken(clientID string, claims storage.Claims, scopes []str
 			tok.Groups = claims.Groups
 		case scope == scopeProfile:
 			tok.Name = claims.Username
+			tok.Locale = claims.Locale
 		case scope == scopeFederatedID:
 			tok.FederatedIDClaims = &federatedIDClaims{
 				ConnectorID: connID,
diff --git a/storage/conformance/conformance.go b/storage/conformance/conformance.go
index a13998077c..357b1638ad 100644
--- a/storage/conformance/conformance.go
+++ b/storage/conformance/conformance.go
@@ -98,6 +98,7 @@ func testAuthRequestCRUD(t *testing.T, s storage.Storage) {
 			Email:         "jane.doe@example.com",
 			EmailVerified: true,
 			Groups:        []string{"a", "b"},
+			Locale:        "en_US",
 		},
 	}
 
@@ -179,6 +180,7 @@ func testAuthCodeCRUD(t *testing.T, s storage.Storage) {
 			Email:         "jane.doe@example.com",
 			EmailVerified: true,
 			Groups:        []string{"a", "b"},
+			Locale:        "en_US",
 		},
 	}
 
@@ -322,6 +324,7 @@ func testRefreshTokenCRUD(t *testing.T, s storage.Storage) {
 			Email:         "jane.doe@example.com",
 			EmailVerified: true,
 			Groups:        []string{"a", "b"},
+			Locale:        "en_US",
 		},
 		ConnectorData: []byte(`{"some":"data"}`),
 	}
@@ -795,6 +798,7 @@ func testGC(t *testing.T, s storage.Storage) {
 			Email:         "jane.doe@example.com",
 			EmailVerified: true,
 			Groups:        []string{"a", "b"},
+			Locale:        "en_US",
 		},
 	}
 
@@ -855,6 +859,7 @@ func testTimezones(t *testing.T, s storage.Storage) {
 			Email:         "jane.doe@example.com",
 			EmailVerified: true,
 			Groups:        []string{"a", "b"},
+			Locale:        "en_US",
 		},
 	}
 	if err := s.CreateAuthCode(c); err != nil {
diff --git a/storage/etcd/types.go b/storage/etcd/types.go
index 0d8f521ad4..b6637a5c53 100644
--- a/storage/etcd/types.go
+++ b/storage/etcd/types.go
@@ -153,6 +153,7 @@ type Claims struct {
 	Email         string   `json:"email"`
 	EmailVerified bool     `json:"emailVerified"`
 	Groups        []string `json:"groups,omitempty"`
+	Locale        string   `json:"locale,omitempty"`
 }
 
 func fromStorageClaims(i storage.Claims) Claims {
@@ -162,6 +163,7 @@ func fromStorageClaims(i storage.Claims) Claims {
 		Email:         i.Email,
 		EmailVerified: i.EmailVerified,
 		Groups:        i.Groups,
+		Locale:        i.Locale,
 	}
 }
 
@@ -172,6 +174,7 @@ func toStorageClaims(i Claims) storage.Claims {
 		Email:         i.Email,
 		EmailVerified: i.EmailVerified,
 		Groups:        i.Groups,
+		Locale:        i.Locale,
 	}
 }
 
diff --git a/storage/kubernetes/types.go b/storage/kubernetes/types.go
index 1ed405b50a..2ca56fc103 100644
--- a/storage/kubernetes/types.go
+++ b/storage/kubernetes/types.go
@@ -215,6 +215,7 @@ type Claims struct {
 	Email         string   `json:"email"`
 	EmailVerified bool     `json:"emailVerified"`
 	Groups        []string `json:"groups,omitempty"`
+	Locale        string   `json:"locale,omitempty"`
 }
 
 func fromStorageClaims(i storage.Claims) Claims {
@@ -224,6 +225,7 @@ func fromStorageClaims(i storage.Claims) Claims {
 		Email:         i.Email,
 		EmailVerified: i.EmailVerified,
 		Groups:        i.Groups,
+		Locale:        i.Locale,
 	}
 }
 
@@ -234,6 +236,7 @@ func toStorageClaims(i Claims) storage.Claims {
 		Email:         i.Email,
 		EmailVerified: i.EmailVerified,
 		Groups:        i.Groups,
+		Locale:        i.Locale,
 	}
 }
 
diff --git a/storage/sql/crud.go b/storage/sql/crud.go
index d7c055ab18..bc9be186b6 100644
--- a/storage/sql/crud.go
+++ b/storage/sql/crud.go
@@ -109,18 +109,18 @@ func (c *conn) CreateAuthRequest(a storage.AuthRequest) error {
 			id, client_id, response_types, scopes, redirect_uri, nonce, state,
 			force_approval_prompt, logged_in,
 			claims_user_id, claims_username, claims_email, claims_email_verified,
-			claims_groups,
+			claims_groups, claims_locale,
 			connector_id, connector_data,
 			expiry
 		)
 		values (
-			$1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17
+			$1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18
 		);
 	`,
 		a.ID, a.ClientID, encoder(a.ResponseTypes), encoder(a.Scopes), a.RedirectURI, a.Nonce, a.State,
 		a.ForceApprovalPrompt, a.LoggedIn,
 		a.Claims.UserID, a.Claims.Username, a.Claims.Email, a.Claims.EmailVerified,
-		encoder(a.Claims.Groups),
+		encoder(a.Claims.Groups), a.Claims.Locale,
 		a.ConnectorID, a.ConnectorData,
 		a.Expiry,
 	)
@@ -151,15 +151,15 @@ func (c *conn) UpdateAuthRequest(id string, updater func(a storage.AuthRequest)
 				nonce = $5, state = $6, force_approval_prompt = $7, logged_in = $8,
 				claims_user_id = $9, claims_username = $10, claims_email = $11,
 				claims_email_verified = $12,
-				claims_groups = $13,
-				connector_id = $14, connector_data = $15,
-				expiry = $16
-			where id = $17;
+				claims_groups = $13, claims_locale = $14,
+				connector_id = $15, connector_data = $16,
+				expiry = $17
+			where id = $18;
 		`,
 			a.ClientID, encoder(a.ResponseTypes), encoder(a.Scopes), a.RedirectURI, a.Nonce, a.State,
 			a.ForceApprovalPrompt, a.LoggedIn,
 			a.Claims.UserID, a.Claims.Username, a.Claims.Email, a.Claims.EmailVerified,
-			encoder(a.Claims.Groups),
+			encoder(a.Claims.Groups), a.Claims.Locale,
 			a.ConnectorID, a.ConnectorData,
 			a.Expiry, r.ID,
 		)
@@ -181,14 +181,14 @@ func getAuthRequest(q querier, id string) (a storage.AuthRequest, err error) {
 			id, client_id, response_types, scopes, redirect_uri, nonce, state,
 			force_approval_prompt, logged_in,
 			claims_user_id, claims_username, claims_email, claims_email_verified,
-			claims_groups,
+			claims_groups, claims_locale,
 			connector_id, connector_data, expiry
 		from auth_request where id = $1;
 	`, id).Scan(
 		&a.ID, &a.ClientID, decoder(&a.ResponseTypes), decoder(&a.Scopes), &a.RedirectURI, &a.Nonce, &a.State,
 		&a.ForceApprovalPrompt, &a.LoggedIn,
 		&a.Claims.UserID, &a.Claims.Username, &a.Claims.Email, &a.Claims.EmailVerified,
-		decoder(&a.Claims.Groups),
+		decoder(&a.Claims.Groups), &a.Claims.Locale,
 		&a.ConnectorID, &a.ConnectorData, &a.Expiry,
 	)
 	if err != nil {
@@ -205,15 +205,15 @@ func (c *conn) CreateAuthCode(a storage.AuthCode) error {
 		insert into auth_code (
 			id, client_id, scopes, nonce, redirect_uri,
 			claims_user_id, claims_username,
-			claims_email, claims_email_verified, claims_groups,
+			claims_email, claims_email_verified, claims_groups, claims_locale,
 			connector_id, connector_data,
 			expiry
 		)
-		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13);
+		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14);
 	`,
 		a.ID, a.ClientID, encoder(a.Scopes), a.Nonce, a.RedirectURI, a.Claims.UserID,
 		a.Claims.Username, a.Claims.Email, a.Claims.EmailVerified, encoder(a.Claims.Groups),
-		a.ConnectorID, a.ConnectorData, a.Expiry,
+		a.Claims.Locale, a.ConnectorID, a.ConnectorData, a.Expiry,
 	)
 
 	if err != nil {
@@ -231,13 +231,13 @@ func (c *conn) GetAuthCode(id string) (a storage.AuthCode, err error) {
 			id, client_id, scopes, nonce, redirect_uri,
 			claims_user_id, claims_username,
 			claims_email, claims_email_verified, claims_groups,
-			connector_id, connector_data,
+			claims_locale, connector_id, connector_data,
 			expiry
 		from auth_code where id = $1;
 	`, id).Scan(
 		&a.ID, &a.ClientID, decoder(&a.Scopes), &a.Nonce, &a.RedirectURI, &a.Claims.UserID,
 		&a.Claims.Username, &a.Claims.Email, &a.Claims.EmailVerified, decoder(&a.Claims.Groups),
-		&a.ConnectorID, &a.ConnectorData, &a.Expiry,
+		&a.Claims.Locale, &a.ConnectorID, &a.ConnectorData, &a.Expiry,
 	)
 	if err != nil {
 		if err == sql.ErrNoRows {
@@ -253,15 +253,15 @@ func (c *conn) CreateRefresh(r storage.RefreshToken) error {
 		insert into refresh_token (
 			id, client_id, scopes, nonce,
 			claims_user_id, claims_username, claims_email, claims_email_verified,
-			claims_groups,
+			claims_groups, claims_locale, 
 			connector_id, connector_data,
 			token, created_at, last_used
 		)
-		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14);
+		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15);
 	`,
 		r.ID, r.ClientID, encoder(r.Scopes), r.Nonce,
 		r.Claims.UserID, r.Claims.Username, r.Claims.Email, r.Claims.EmailVerified,
-		encoder(r.Claims.Groups),
+		encoder(r.Claims.Groups), r.Claims.Locale,
 		r.ConnectorID, r.ConnectorData,
 		r.Token, r.CreatedAt, r.LastUsed,
 	)
@@ -294,17 +294,18 @@ func (c *conn) UpdateRefreshToken(id string, updater func(old storage.RefreshTok
 				claims_email = $6,
 				claims_email_verified = $7,
 				claims_groups = $8,
-				connector_id = $9,
-				connector_data = $10,
-				token = $11,
-				created_at = $12,
-				last_used = $13
+				claims_locale = $9,
+				connector_id = $10,
+				connector_data = $11,
+				token = $12,
+				created_at = $13,
+				last_used = $14
 			where
-				id = $14
+				id = $15
 		`,
 			r.ClientID, encoder(r.Scopes), r.Nonce,
 			r.Claims.UserID, r.Claims.Username, r.Claims.Email, r.Claims.EmailVerified,
-			encoder(r.Claims.Groups),
+			encoder(r.Claims.Groups), r.Claims.Locale,
 			r.ConnectorID, r.ConnectorData,
 			r.Token, r.CreatedAt, r.LastUsed, id,
 		)
@@ -324,7 +325,7 @@ func getRefresh(q querier, id string) (storage.RefreshToken, error) {
 		select
 			id, client_id, scopes, nonce,
 			claims_user_id, claims_username, claims_email, claims_email_verified,
-			claims_groups,
+			claims_groups, claims_locale, 
 			connector_id, connector_data,
 			token, created_at, last_used
 		from refresh_token where id = $1;
@@ -336,7 +337,7 @@ func (c *conn) ListRefreshTokens() ([]storage.RefreshToken, error) {
 		select
 			id, client_id, scopes, nonce,
 			claims_user_id, claims_username, claims_email, claims_email_verified,
-			claims_groups,
+			claims_groups, claims_locale, 
 			connector_id, connector_data,
 			token, created_at, last_used
 		from refresh_token;
@@ -362,7 +363,7 @@ func scanRefresh(s scanner) (r storage.RefreshToken, err error) {
 	err = s.Scan(
 		&r.ID, &r.ClientID, decoder(&r.Scopes), &r.Nonce,
 		&r.Claims.UserID, &r.Claims.Username, &r.Claims.Email, &r.Claims.EmailVerified,
-		decoder(&r.Claims.Groups),
+		decoder(&r.Claims.Groups), &r.Claims.Locale,
 		&r.ConnectorID, &r.ConnectorData,
 		&r.Token, &r.CreatedAt, &r.LastUsed,
 	)
diff --git a/storage/sql/migrate.go b/storage/sql/migrate.go
index e30629e742..7468d00042 100644
--- a/storage/sql/migrate.go
+++ b/storage/sql/migrate.go
@@ -190,4 +190,16 @@ var migrations = []migration{
 			);`,
 		},
 	},
+	{
+		stmts: []string{`
+			alter table auth_request
+				add column claims_locale text;`,
+			`
+			alter table auth_code
+				add column claims_locale text;`,
+			`
+			alter table refresh_token
+				add column claims_locale text;`,
+		},
+	},
 }
diff --git a/storage/storage.go b/storage/storage.go
index 893fb10035..9003dba136 100644
--- a/storage/storage.go
+++ b/storage/storage.go
@@ -141,8 +141,8 @@ type Claims struct {
 	Username      string
 	Email         string
 	EmailVerified bool
-
-	Groups []string
+	Groups        []string
+	Locale        string
 }
 
 // AuthRequest represents a OAuth2 client authorization request. It holds the state