diff --git a/models/organization/org_list.go b/models/organization/org_list.go
index 72ebf6f1782..4c4168af1f8 100644
--- a/models/organization/org_list.go
+++ b/models/organization/org_list.go
@@ -16,6 +16,31 @@ import (
 	"xorm.io/builder"
 )
 
+type OrgList []*Organization
+
+func (orgs OrgList) LoadTeams(ctx context.Context) (map[int64]TeamList, error) {
+	if len(orgs) == 0 {
+		return map[int64]TeamList{}, nil
+	}
+
+	orgIDs := make([]int64, len(orgs))
+	for i, org := range orgs {
+		orgIDs[i] = org.ID
+	}
+
+	teams, err := GetTeamsByOrgIDs(ctx, orgIDs)
+	if err != nil {
+		return nil, err
+	}
+
+	teamMap := make(map[int64]TeamList, len(orgs))
+	for _, team := range teams {
+		teamMap[team.OrgID] = append(teamMap[team.OrgID], team)
+	}
+
+	return teamMap, nil
+}
+
 // SearchOrganizationsOptions options to filter organizations
 type SearchOrganizationsOptions struct {
 	db.ListOptions
diff --git a/models/organization/org_list_test.go b/models/organization/org_list_test.go
index fc8d148a1d7..edc8996f3ec 100644
--- a/models/organization/org_list_test.go
+++ b/models/organization/org_list_test.go
@@ -60,3 +60,14 @@ func TestGetUserOrgsList(t *testing.T) {
 		assert.EqualValues(t, 2, orgs[0].NumRepos)
 	}
 }
+
+func TestLoadOrgListTeams(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	orgs, err := organization.GetUserOrgsList(db.DefaultContext, &user_model.User{ID: 4})
+	assert.NoError(t, err)
+	assert.Len(t, orgs, 1)
+	teamsMap, err := organization.OrgList(orgs).LoadTeams(db.DefaultContext)
+	assert.NoError(t, err)
+	assert.Len(t, teamsMap, 1)
+	assert.Len(t, teamsMap[3], 5)
+}
diff --git a/models/organization/team_list.go b/models/organization/team_list.go
index 5b45429acf3..cc2a50236a4 100644
--- a/models/organization/team_list.go
+++ b/models/organization/team_list.go
@@ -126,3 +126,8 @@ func GetUserRepoTeams(ctx context.Context, orgID, userID, repoID int64) (teams T
 		And("team_repo.repo_id=?", repoID).
 		Find(&teams)
 }
+
+func GetTeamsByOrgIDs(ctx context.Context, orgIDs []int64) (TeamList, error) {
+	teams := make([]*Team, 0, 10)
+	return teams, db.GetEngine(ctx).Where(builder.In("org_id", orgIDs)).Find(&teams)
+}
diff --git a/services/oauth2_provider/access_token.go b/services/oauth2_provider/access_token.go
index f79afa4b301..b57b9f7786e 100644
--- a/services/oauth2_provider/access_token.go
+++ b/services/oauth2_provider/access_token.go
@@ -201,14 +201,15 @@ func GetOAuthGroupsForUser(ctx context.Context, user *user_model.User) ([]string
 		return nil, fmt.Errorf("GetUserOrgList: %w", err)
 	}
 
+	orgTeams, err := org_model.OrgList(orgs).LoadTeams(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("LoadTeams: %w", err)
+	}
+
 	var groups []string
 	for _, org := range orgs {
 		groups = append(groups, org.Name)
-		teams, err := org.LoadTeams(ctx)
-		if err != nil {
-			return nil, fmt.Errorf("LoadTeams: %w", err)
-		}
-		for _, team := range teams {
+		for _, team := range orgTeams[org.ID] {
 			if team.IsMember(ctx, user.ID) {
 				groups = append(groups, org.Name+":"+team.LowerName)
 			}