diff --git a/openslides/users/config_variables.py b/openslides/users/config_variables.py
index 4946cfe94..bcb2c20ea 100644
--- a/openslides/users/config_variables.py
+++ b/openslides/users/config_variables.py
@@ -15,8 +15,8 @@ def get_config_variables():
         input_type='choice',
         label='Sort name of participants by',
         choices=(
-            {'value': 'first_name', 'display_name': 'First name'},
-            {'value': 'last_name', 'display_name': 'Last name'}),
+            {'value': 'first_name', 'display_name': 'Given name'},
+            {'value': 'last_name', 'display_name': 'Surname'}),
         weight=510,
         group='Participants',
         subgroup='General')
diff --git a/openslides/users/serializers.py b/openslides/users/serializers.py
index ae4c4cd59..f2b82a076 100644
--- a/openslides/users/serializers.py
+++ b/openslides/users/serializers.py
@@ -56,7 +56,7 @@ class UserFullSerializer(ModelSerializer):
         username if it is empty.
         """
         if not (data.get('username') or data.get('first_name') or data.get('last_name')):
-            raise ValidationError({'detail': _('Username, first name and last name can not all be empty.')})
+            raise ValidationError({'detail': _('Username, given name and surname can not all be empty.')})
 
         # Generate username. But only if it is not set and the serializer is not
         # called in a PATCH context (partial_update).
diff --git a/openslides/users/static/js/users/site.js b/openslides/users/static/js/users/site.js
index 29a3427b4..1369ce08a 100644
--- a/openslides/users/static/js/users/site.js
+++ b/openslides/users/static/js/users/site.js
@@ -318,7 +318,7 @@ angular.module('OpenSlidesApp.users.site', [
                             type: 'input',
                             className: "col-xs-5 no-padding",
                             templateOptions: {
-                                label: gettextCatalog.getString('First name')
+                                label: gettextCatalog.getString('Given name')
                             }
                         },
                         {
@@ -326,7 +326,7 @@ angular.module('OpenSlidesApp.users.site', [
                             type: 'input',
                             className: "col-xs-5 no-padding-right",
                             templateOptions: {
-                                label: gettextCatalog.getString('Last name')
+                                label: gettextCatalog.getString('Surname')
                             }
                         }
                     ]
@@ -564,9 +564,9 @@ angular.module('OpenSlidesApp.users.site', [
         $scope.sort.column = $scope.config('users_sort_by');
         $scope.sortOptions = [
             {name: 'first_name',
-             display_name: 'First name'},
+             display_name: 'Given name'},
             {name: 'last_name',
-             display_name: 'Last name'},
+             display_name: 'Surname'},
             {name: 'is_present',
              display_name: 'Present'},
             {name: 'is_active',
@@ -999,7 +999,7 @@ angular.module('OpenSlidesApp.users.site', [
                 }
                 if (!user.first_name && !user.last_name) {
                     user.importerror = true;
-                    user.name_error = gettext('Error: First or last name is required.');
+                    user.name_error = gettext('Error: Given name or surname is required.');
                 }
                 // structure level
                 if (user.structure_level) {
@@ -1092,10 +1092,10 @@ angular.module('OpenSlidesApp.users.site', [
                                 user.duplicate_info += user_.last_name;
                             user.duplicate_info += ' (';
                             if (user_.number)
-                                user.duplicate_info += gettextCatalog.getString('number') + ': ' + user_.number + ', ';
+                                user.duplicate_info += gettextCatalog.getString('Number') + ': ' + user_.number + ', ';
                             if (user_.structure_level)
-                                user.duplicate_info += gettextCatalog.getString('structure level') + ': ' + user_.structure_level + ', ';
-                            user.duplicate_info += gettextCatalog.getString('username') + ': ' + user_.username + ') '+
+                                user.duplicate_info += gettextCatalog.getString('Structure level') + ': ' + user_.structure_level + ', ';
+                            user.duplicate_info += gettextCatalog.getString('Username') + ': ' + user_.username + ') '+
                                 gettextCatalog.getString('already exists.');
 
                             $scope.duplicates++;
@@ -1552,8 +1552,8 @@ angular.module('OpenSlidesApp.users.site', [
         gettext('General');
         gettext('Sort name of participants by');
         gettext('Participants');
-        gettext('First name');
-        gettext('Last name');
+        gettext('Given name');
+        gettext('Surname');
         gettext('PDF');
         gettext('Welcome to OpenSlides');
         gettext('Title for access data and welcome PDF');
diff --git a/openslides/users/static/templates/users/user-detail-profile.html b/openslides/users/static/templates/users/user-detail-profile.html
index e80f51eb7..159e93fca 100644
--- a/openslides/users/static/templates/users/user-detail-profile.html
+++ b/openslides/users/static/templates/users/user-detail-profile.html
@@ -23,11 +23,11 @@
         <input type="text" ng-model="user.title" class="form-control" name="inputTitle">
       </div>
       <div class="col-xs-5">
-        <label for="inputFirstName" translate>First name</label>
+        <label for="inputFirstName" translate>Given name</label>
         <input type="text" ng-model="user.first_name" class="form-control" name="inputFirstName">
       </div>
       <div class="col-xs-5">
-        <label for="inputLastName" translate>Last name</label>
+        <label for="inputLastName" translate>Surname</label>
         <input type="text" ng-model="user.last_name" class="form-control" name="inputLastName">
       </div>
     </div>
diff --git a/openslides/users/static/templates/users/user-import.html b/openslides/users/static/templates/users/user-import.html
index dda506e74..84a06b640 100644
--- a/openslides/users/static/templates/users/user-import.html
+++ b/openslides/users/static/templates/users/user-import.html
@@ -73,7 +73,7 @@
           <translate>Delegates</translate> <code>2</code>,
           <translate>Staff</translate> <code>3</code>
           <translate>Committees</translate> <code>4</code>
-      <li translate>At least first name or last name have to be filled in. All
+      <li translate>At least given name or surname have to be filled in. All
         other fields are optional and may be empty.
       <li translate>Only double quotes are accepted as text delimiter (no single quotes).
       <li><a id="downloadLink" href="" ng-click="downloadCSVExample()" translate>Download CSV example file</a>
@@ -87,8 +87,8 @@
           <th>
           <th>#
           <th translate>Title
-          <th translate>First name
-          <th translate>Last name
+          <th translate>Given name
+          <th translate>Surname
           <th translate>Structure level
           <th translate>Participant number
           <th translate>Groups