diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c10d3e073..4ab7c1459 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -36,6 +36,7 @@ Motions:
 User:
  - Added new admin group which grants all permissions. Users of existing group
    'Admin' or 'Staff' are move to the new group during migration [#3859].
+ - Added gender field [#4124].
 
 
 Version 2.3 (2018-09-20)
diff --git a/openslides/users/access_permissions.py b/openslides/users/access_permissions.py
index 40843611e..379312f2f 100644
--- a/openslides/users/access_permissions.py
+++ b/openslides/users/access_permissions.py
@@ -33,7 +33,8 @@ class UserAccessPermissions(BaseAccessPermissions):
         # * full data i. e. all fields (including session_auth_hash),
         # * all data i. e. all fields but not session_auth_hash,
         # * many data i. e. all fields but not the default password and session_auth_hash,
-        # * little data i. e. all fields but not the default password, session_auth_hash, comments and active status,
+        # * little data i. e. all fields but not the default password, session_auth_hash,
+        #   comments, gender, email, last_email_send and active status,
         # * no data.
 
         # Prepare field set for users with "all" data, "many" data and with "little" data.
diff --git a/openslides/users/migrations/0008_user_gender.py b/openslides/users/migrations/0008_user_gender.py
new file mode 100644
index 000000000..028c666ac
--- /dev/null
+++ b/openslides/users/migrations/0008_user_gender.py
@@ -0,0 +1,16 @@
+# Generated by Django 2.1.5 on 2019-01-18 16:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("users", "0007_superadmin")]
+
+    operations = [
+        migrations.AddField(
+            model_name="user",
+            name="gender",
+            field=models.CharField(blank=True, max_length=255),
+        )
+    ]
diff --git a/openslides/users/models.py b/openslides/users/models.py
index 0af1fdf5a..e37b8ab11 100644
--- a/openslides/users/models.py
+++ b/openslides/users/models.py
@@ -134,6 +134,8 @@ class User(RESTModelMixin, PermissionsMixin, AbstractBaseUser):
 
     last_name = models.CharField(max_length=255, blank=True)
 
+    gender = models.CharField(max_length=255, blank=True)
+
     email = models.EmailField(blank=True)
 
     last_email_send = models.DateTimeField(blank=True, null=True)
diff --git a/openslides/users/serializers.py b/openslides/users/serializers.py
index 38a9914a8..b0b00cb27 100644
--- a/openslides/users/serializers.py
+++ b/openslides/users/serializers.py
@@ -29,6 +29,7 @@ USERCANSEESERIALIZER_FIELDS = (
 
 
 USERCANSEEEXTRASERIALIZER_FIELDS = USERCANSEESERIALIZER_FIELDS + (
+    "gender",
     "email",
     "last_email_send",
     "comment",