diff --git a/config/config.default.php b/config/config.default.php
index ba343cf4..161b6626 100644
--- a/config/config.default.php
+++ b/config/config.default.php
@@ -110,6 +110,9 @@ return [
     // Whether the DECT field should be enabled
     'enable_dect'             => true,
 
+    // Enables prename and lastname
+    'enable_user_name'        => false,
+
     // Enables the planned arrival/leave date
     'enable_planned_arrival'  => true,
 
diff --git a/includes/pages/admin_user.php b/includes/pages/admin_user.php
index c71d5386..b708b38b 100644
--- a/includes/pages/admin_user.php
+++ b/includes/pages/admin_user.php
@@ -52,8 +52,10 @@ function admin_user()
         $html .= '  <tr><td>Last login</td><td><p class="help-block">'
             . ($user_source->last_login_at ? $user_source->last_login_at->format('Y-m-d H:i') : '-')
             . '</p></td></tr>' . "\n";
-        $html .= '  <tr><td>Name</td><td>' . '<input size="40" name="eName" value="' . $user_source->personalData->last_name . '" class="form-control"></td></tr>' . "\n";
-        $html .= '  <tr><td>Vorname</td><td>' . '<input size="40" name="eVorname" value="' . $user_source->personalData->first_name . '" class="form-control"></td></tr>' . "\n";
+        if (config('enable_user_name')) {
+            $html .= '  <tr><td>Name</td><td>' . '<input size="40" name="eName" value="' . $user_source->personalData->last_name . '" class="form-control"></td></tr>' . "\n";
+            $html .= '  <tr><td>Vorname</td><td>' . '<input size="40" name="eVorname" value="' . $user_source->personalData->first_name . '" class="form-control"></td></tr>' . "\n";
+        }
         $html .= '  <tr><td>Handy</td><td>' . '<input type= "tel" size="40" name="eHandy" value="' . $user_source->contact->mobile . '" class="form-control"></td></tr>' . "\n";
         if (config('enable_dect')) {
             $html .= '  <tr><td>DECT</td><td>' . '<input size="40" name="eDECT" value="' . $user_source->contact->dect . '" class="form-control"></td></tr>' . "\n";
diff --git a/includes/pages/guest_login.php b/includes/pages/guest_login.php
index 3bc10fc3..280743e5 100644
--- a/includes/pages/guest_login.php
+++ b/includes/pages/guest_login.php
@@ -26,6 +26,7 @@ function guest_register()
     $authUser = auth()->user();
     $tshirt_sizes = config('tshirt_sizes');
     $enable_tshirt_size = config('enable_tshirt_size');
+    $enable_user_name = config('enable_user_name');
     $enable_dect = config('enable_dect');
     $enable_planned_arrival = config('enable_planned_arrival');
     $min_password_length = config('min_password_length');
@@ -151,10 +152,10 @@ function guest_register()
         }
 
         // Trivia
-        if ($request->has('lastname')) {
+        if ($enable_user_name && $request->has('lastname')) {
             $lastName = strip_request_item('lastname');
         }
-        if ($request->has('prename')) {
+        if ($enable_user_name && $request->has('prename')) {
             $preName = strip_request_item('prename');
         }
         if ($enable_dect && $request->has('dect')) {
@@ -338,14 +339,14 @@ function guest_register()
                             form_text('mobile', __('Mobile'), $mobile)
                         ]),
                     ]),
-                    div('row', [
+                    $enable_user_name ? div('row', [
                         div('col-sm-6', [
                             form_text('prename', __('First name'), $preName)
                         ]),
                         div('col-sm-6', [
                             form_text('lastname', __('Last name'), $lastName)
                         ])
-                    ]),
+                    ]) : '',
                     form_info(entry_required() . ' = ' . __('Entry required!'))
                 ])
             ]),
diff --git a/includes/pages/user_settings.php b/includes/pages/user_settings.php
index f6853191..e398e3a8 100644
--- a/includes/pages/user_settings.php
+++ b/includes/pages/user_settings.php
@@ -70,13 +70,17 @@ function user_settings_main($user_source, $enable_tshirt_size, $tshirt_sizes)
     }
 
     // Trivia
-    $user_source->personalData->last_name = strip_request_item('lastname', $user_source->personalData->last_name);
-    $user_source->personalData->first_name = strip_request_item('prename', $user_source->personalData->first_name);
-    if (strlen(strip_request_item('dect')) <= 40) {
-        $user_source->contact->dect = strip_request_item('dect', $user_source->contact->dect);
-    } else {
-        $valid = false;
-        error(__('For dect numbers are only 40 digits allowed.'));
+    if(config('enable_user_name')) {
+        $user_source->personalData->last_name = strip_request_item('lastname', $user_source->personalData->last_name);
+        $user_source->personalData->first_name = strip_request_item('prename', $user_source->personalData->first_name);
+    }
+    if (config('enable_dect')) {
+        if (strlen(strip_request_item('dect')) <= 40) {
+            $user_source->contact->dect = strip_request_item('dect', $user_source->contact->dect);
+        } else {
+            $valid = false;
+            error(__('For dect numbers are only 40 digits allowed.'));
+        }
     }
     $user_source->contact->mobile = strip_request_item('mobile', $user_source->contact->mobile);
 
diff --git a/includes/view/User_view.php b/includes/view/User_view.php
index 9f5264ef..f44f47ca 100644
--- a/includes/view/User_view.php
+++ b/includes/view/User_view.php
@@ -25,6 +25,7 @@ function User_settings_view(
     $tshirt_sizes
 ) {
     $personalData = $user_source->personalData;
+    $enable_user_name = config('enable_user_name');
     $enable_dect = config('enable_dect');
     $enable_planned_arrival = config('enable_planned_arrival');
 
@@ -40,8 +41,8 @@ function User_settings_view(
                         '',
                         __('Use up to 23 letters, numbers, connecting punctuations or spaces for your nickname.')
                     ),
-                    form_text('lastname', __('Last name'), $personalData->last_name),
-                    form_text('prename', __('First name'), $personalData->first_name),
+                    $enable_user_name ? form_text('lastname', __('Last name'), $personalData->last_name) : '',
+                    $enable_user_name ? form_text('prename', __('First name'), $personalData->first_name) : '',
                     $enable_planned_arrival ? form_date(
                         'planned_arrival_date',
                         __('Planned date of arrival') . ' ' . entry_required(),
@@ -253,28 +254,34 @@ function Users_view(
         'actions'      => '<strong>' . count($usersList) . '</strong>'
     ];
 
+    $user_table_headers = [
+        'name'           => Users_table_header_link('name', __('Nick'), $order_by)
+    ];
+    if(config('enable_user_name')) {
+        $user_table_headers['first_name'] = Users_table_header_link('first_name', __('Prename'), $order_by);
+        $user_table_headers['last_name'] = Users_table_header_link('last_name', __('Name'), $order_by);
+    }
+    if(config('enable_dect')) {
+        $user_table_headers['dect'] = Users_table_header_link('dect', __('DECT'), $order_by);
+    }
+    $user_table_headers['arrived'] = Users_table_header_link('arrived', __('Arrived'), $order_by);
+    $user_table_headers['got_voucher'] = Users_table_header_link('got_voucher', __('Voucher'), $order_by);
+    $user_table_headers['freeloads'] = __('Freeloads');
+    $user_table_headers['active'] = Users_table_header_link('active', __('Active'), $order_by);
+    $user_table_headers['force_active'] = Users_table_header_link('force_active', __('Forced'), $order_by);
+    $user_table_headers['got_shirt'] = Users_table_header_link('got_shirt', __('T-Shirt'), $order_by);
+    $user_table_headers['shirt_size'] = Users_table_header_link('shirt_size', __('Size'), $order_by);
+    $user_table_headers['arrival_date'] = Users_table_header_link('planned_arrival_date', __('Planned arrival'), $order_by);
+    $user_table_headers['departure_date'] = Users_table_header_link('planned_departure_date', __('Planned departure'), $order_by);
+    $user_table_headers['last_login_at'] = Users_table_header_link('last_login_at', __('Last login'), $order_by);
+    $user_table_headers['actions'] = '';
+
     return page_with_title(__('All users'), [
         msg(),
         buttons([
             button(page_link_to('register'), glyph('plus') . __('New user'))
         ]),
-        table([
-            'name'           => Users_table_header_link('name', __('Nick'), $order_by),
-            'first_name'     => Users_table_header_link('first_name', __('Prename'), $order_by),
-            'last_name'      => Users_table_header_link('last_name', __('Name'), $order_by),
-            'dect'           => Users_table_header_link('dect', __('DECT'), $order_by),
-            'arrived'        => Users_table_header_link('arrived', __('Arrived'), $order_by),
-            'got_voucher'    => Users_table_header_link('got_voucher', __('Voucher'), $order_by),
-            'freeloads'      => __('Freeloads'),
-            'active'         => Users_table_header_link('active', __('Active'), $order_by),
-            'force_active'   => Users_table_header_link('force_active', __('Forced'), $order_by),
-            'got_shirt'      => Users_table_header_link('got_shirt', __('T-Shirt'), $order_by),
-            'shirt_size'     => Users_table_header_link('shirt_size', __('Size'), $order_by),
-            'arrival_date'   => Users_table_header_link('planned_arrival_date', __('Planned arrival'), $order_by),
-            'departure_date' => Users_table_header_link('planned_departure_date', __('Planned departure'), $order_by),
-            'last_login_at'  => Users_table_header_link('last_login_at', __('Last login'), $order_by),
-            'actions'        => ''
-        ], $usersList)
+        table($user_table_headers, $usersList)
     ]);
 }
 
@@ -609,7 +616,7 @@ function User_view(
     return page_with_title(
         '<span class="icon-icon_angel"></span> '
         . htmlspecialchars($user_source->name)
-        . ' <small>' . $user_name . '</small>',
+        . (config('enable_user_name') ? ' <small>' . $user_name . '</small>' : ''),
         [
             msg(),
             div('row space-top', [