diff --git a/core/modules/node/lib/Drupal/node/Form/DeleteMultiple.php b/core/modules/node/lib/Drupal/node/Form/DeleteMultiple.php
index c847004..09ad79c 100644
--- a/core/modules/node/lib/Drupal/node/Form/DeleteMultiple.php
+++ b/core/modules/node/lib/Drupal/node/Form/DeleteMultiple.php
@@ -96,7 +96,7 @@ public function getConfirmText() {
    * {@inheritdoc}
    */
   public function buildForm(array $form, array &$form_state) {
-    $this->nodes = $this->tempStoreFactory->get('node_multiple_delete_confirm')->get($GLOBALS['user']->id());
+    $this->nodes = $this->tempStoreFactory->get('node_multiple_delete_confirm')->get(\Drupal::currentUser()->id());
     if (empty($this->nodes)) {
       return new RedirectResponse(url('admin/content', array('absolute' => TRUE)));
     }
@@ -120,7 +120,7 @@ public function buildForm(array $form, array &$form_state) {
   public function submitForm(array &$form, array &$form_state) {
     if ($form_state['values']['confirm'] && !empty($this->nodes)) {
       $this->storageController->delete($this->nodes);
-      $this->tempStoreFactory->get('node_multiple_delete_confirm')->delete($GLOBALS['user']->id());
+      $this->tempStoreFactory->get('node_multiple_delete_confirm')->delete(\Drupal::currentUser()->id());
       $count = count($this->nodes);
       watchdog('content', 'Deleted @count posts.', array('@count' => $count));
       drupal_set_message(format_plural($count, 'Deleted 1 post.', 'Deleted @count posts.'));
diff --git a/core/modules/node/lib/Drupal/node/NodeFormController.php b/core/modules/node/lib/Drupal/node/NodeFormController.php
index 659777a..48a501c 100644
--- a/core/modules/node/lib/Drupal/node/NodeFormController.php
+++ b/core/modules/node/lib/Drupal/node/NodeFormController.php
@@ -47,8 +47,7 @@ protected function prepareEntity() {
           $node->$key = (int) in_array($key, $this->settings['options']);
         }
       }
-      global $user;
-      $node->setAuthorId($user->id());
+      $node->setAuthorId(\Drupal::currentUser()->id());
       $node->setCreatedTime(REQUEST_TIME);
     }
     else {
@@ -377,8 +376,7 @@ public function submit(array $form, array &$form_state) {
       $node->setNewRevision();
       // If a new revision is created, save the current user as revision author.
       $node->setRevisionCreationTime(REQUEST_TIME);
-      global $user;
-      $node->setRevisionAuthorId($user->id());
+      $node->setRevisionAuthorId(\Drupal::currentUser()->id());
     }
 
     $node->validated = TRUE;
diff --git a/core/modules/node/lib/Drupal/node/Plugin/Action/DeleteNode.php b/core/modules/node/lib/Drupal/node/Plugin/Action/DeleteNode.php
index 9b839d0..47a45f9 100644
--- a/core/modules/node/lib/Drupal/node/Plugin/Action/DeleteNode.php
+++ b/core/modules/node/lib/Drupal/node/Plugin/Action/DeleteNode.php
@@ -62,7 +62,7 @@ public static function create(ContainerInterface $container, array $configuratio
    * {@inheritdoc}
    */
   public function executeMultiple(array $entities) {
-    $this->tempStore->set($GLOBALS['user']->id(), $entities);
+    $this->tempStore->set(\Drupal::currentUser()->id(), $entities);
   }
 
   /**
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeQueryAlterTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeQueryAlterTest.php
index 4d62136..6a6bce7 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeQueryAlterTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeQueryAlterTest.php
@@ -166,7 +166,7 @@ function testNodeQueryAlterOverride() {
     // Have node_test_node_grants return a node_access_all privilege,
     // to grant the noAccessUser 'view' access.  To verify that
     // node_access_view_all_nodes is properly checking the specified
-    // $account instead of the global $user, we will log in as
+    // $account instead of the current user, we will log in as
     // noAccessUser2.
     $this->drupalLogin($this->noAccessUser2);
     \Drupal::state()->set('node_access_test.no_access_uid', $this->noAccessUser->id());
diff --git a/core/modules/node/node.admin.inc b/core/modules/node/node.admin.inc
index 03387f8..35bd9ea 100644
--- a/core/modules/node/node.admin.inc
+++ b/core/modules/node/node.admin.inc
@@ -206,7 +206,7 @@ function node_admin_nodes() {
     // If the user is able to view their own unpublished nodes, allow them
     // to see these in addition to published nodes. Check that they actually
     // have some unpublished nodes to view before adding the condition.
-    if (user_access('view own unpublished content') && $own_unpublished = db_query('SELECT DISTINCT nid FROM {node_field_data} WHERE uid = :uid AND status = :status', array(':uid' => $GLOBALS['user']->id(), ':status' => 0))->fetchCol()) {
+    if (user_access('view own unpublished content') && $own_unpublished = db_query('SELECT DISTINCT nid FROM {node_field_data} WHERE uid = :uid AND status = :status', array(':uid' => \Drupal::currentUser()->id(), ':status' => 0))->fetchCol()) {
       $query->condition(db_or()
         ->condition('n.status', 1)
         ->condition('n.nid', $own_unpublished, 'IN')
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index a860f3f..3be302b 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -276,10 +276,9 @@ function node_title_list($result, $title = NULL) {
  *   One of the MARK constants.
  */
 function node_mark($nid, $timestamp) {
-  global $user;
   $cache = &drupal_static(__FUNCTION__, array());
 
-  if ($user->isAnonymous() || !\Drupal::moduleHandler()->moduleExists('history')) {
+  if (\Drupal::currentUser()->isAnonymous() || !\Drupal::moduleHandler()->moduleExists('history')) {
     return MARK_READ;
   }
   if (!isset($cache[$nid])) {
@@ -1070,7 +1069,7 @@ function node_get_recent($number = 10) {
     // If the user is able to view their own unpublished nodes, allow them
     // to see these in addition to published nodes. Check that they actually
     // have some unpublished nodes to view before adding the condition.
-    if (user_access('view own unpublished content') && $own_unpublished = db_query('SELECT DISTINCT nid FROM {node_field_data} WHERE uid = :uid AND status = :status', array(':uid' => $GLOBALS['user']->id(), ':status' => NODE_NOT_PUBLISHED))->fetchCol()) {
+    if (user_access('view own unpublished content') && $own_unpublished = db_query('SELECT DISTINCT nid FROM {node_field_data} WHERE uid = :uid AND status = :status', array(':uid' => \Drupal::currentUser()->id(), ':status' => NODE_NOT_PUBLISHED))->fetchCol()) {
       $query->condition(db_or()
         ->condition('n.status', NODE_PUBLISHED)
         ->condition('n.nid', $own_unpublished, 'IN')
@@ -1651,7 +1650,7 @@ function node_permissions_get_configured_types() {
 function node_access_grants($op, $account = NULL) {
 
   if (!isset($account)) {
-    $account = $GLOBALS['user'];
+    $account = \Drupal::currentUser();
   }
 
   // Fetch node access grants from other modules.
@@ -1685,9 +1684,8 @@ function node_access_grants($op, $account = NULL) {
  * @see node_query_node_access_alter()
  */
 function node_access_view_all_nodes($account = NULL) {
-  global $user;
   if (!$account) {
-    $account = $user;
+    $account = \Drupal::currentUser();
   }
 
   // Statically cache results in an array keyed by $account->id().
@@ -1713,7 +1711,7 @@ function node_access_view_all_nodes($account = NULL) {
  *
  * This is the hook_query_alter() for queries tagged with 'node_access'. It adds
  * node access checks for the user account given by the 'account' meta-data (or
- * global $user if not provided), for an operation given by the 'op' meta-data
+ * current user if not provided), for an operation given by the 'op' meta-data
  * (or 'view' if not provided; other possible values are 'update' and 'delete').
  *
  * Queries tagged with 'node_access' that are not against the {node} table