diff --git a/phpBB/config/default/container/services_console.yml b/phpBB/config/default/container/services_console.yml
index 0a28c0ed1f..3ada9d1639 100644
--- a/phpBB/config/default/container/services_console.yml
+++ b/phpBB/config/default/container/services_console.yml
@@ -232,3 +232,15 @@ services:
             - '%core.php_ext%'
         tags:
             - { name: console.command }
+
+    console.command.user.delete:
+        class: phpbb\console\command\user\delete
+        arguments:
+            - '@user'
+            - '@dbal.conn'
+            - '@language'
+            - '@log'
+            - '%core.root_path%'
+            - '%core.php_ext%'
+        tags:
+            - { name: console.command }
diff --git a/phpBB/language/en/cli.php b/phpBB/language/en/cli.php
index 6cb516ebfd..bb7baf67f7 100644
--- a/phpBB/language/en/cli.php
+++ b/phpBB/language/en/cli.php
@@ -87,6 +87,9 @@ $lang = array_merge($lang, array(
 	'CLI_DESCRIPTION_USER_ADD_OPTION_PASSWORD'	=> 'Password of the new user',
 	'CLI_DESCRIPTION_USER_ADD_OPTION_EMAIL'		=> 'E-mail address of the new user',
 	'CLI_DESCRIPTION_USER_ADD_OPTION_NOTIFY'	=> 'Send account activation email to the new user (not sent by default)',
+	'CLI_DESCRIPTION_USER_DELETE'				=> 'Delete a user account.',
+	'CLI_DESCRIPTION_USER_DELETE_USERNAME'		=> 'Username of the user to delete',
+	'CLI_DESCRIPTION_USER_DELETE_OPTION_POSTS'	=> 'Delete all posts by the user. Without this option, the user’s posts will be retained.',
 
 	'CLI_EXTENSION_DISABLE_FAILURE'		=> 'Could not disable extension %s',
 	'CLI_EXTENSION_DISABLE_SUCCESS'		=> 'Successfully disabled extension %s',
@@ -126,6 +129,7 @@ $lang = array_merge($lang, array(
 	'CLI_THUMBNAIL_NOTHING_TO_DELETE'	=> 'No thumbnails to delete.',
 
 	'CLI_USER_ADD_SUCCESS'		=> 'Successfully added user %s.',
+	'CLI_USER_DELETE_CONFIRM'	=> 'Are you sure you want to delete ‘%s’? [y/N]',
 ));
 
 // Additional help for commands.
diff --git a/phpBB/phpbb/console/command/user/delete.php b/phpBB/phpbb/console/command/user/delete.php
new file mode 100644
index 0000000000..360b119e17
--- /dev/null
+++ b/phpBB/phpbb/console/command/user/delete.php
@@ -0,0 +1,175 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\console\command\user;
+
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ConfirmationQuestion;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class delete extends \phpbb\console\command\command
+{
+	/** @var \phpbb\db\driver\driver_interface */
+	protected $db;
+
+	/** @var \phpbb\language\language */
+	protected $language;
+
+	/** @var \phpbb\log\log_interface */
+	protected $log;
+
+	/**
+	 * phpBB root path
+	 *
+	 * @var string
+	 */
+	protected $phpbb_root_path;
+
+	/**
+	 * PHP extension.
+	 *
+	 * @var string
+	 */
+	protected $php_ext;
+
+	/**
+	 * Construct method
+	 *
+	 * @param \phpbb\user                       $user
+	 * @param \phpbb\db\driver\driver_interface $db
+	 * @param \phpbb\language\language          $language
+	 * @param \phpbb\log\log_interface          $log
+	 * @param string                            $phpbb_root_path
+	 * @param string                            $php_ext
+	 */
+	public function __construct(\phpbb\user $user, \phpbb\db\driver\driver_interface $db, \phpbb\language\language $language, \phpbb\log\log_interface $log, $phpbb_root_path, $php_ext)
+	{
+		$this->db = $db;
+		$this->language = $language;
+		$this->log = $log;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $php_ext;
+
+		$this->language->add_lang('acp/users');
+		parent::__construct($user);
+	}
+
+	/**
+	 * Sets the command name and description
+	 *
+	 * @return null
+	 */
+	protected function configure()
+	{
+		$this
+			->setName('user:delete')
+			->setDescription($this->language->lang('CLI_DESCRIPTION_USER_DELETE'))
+			->addArgument(
+				'username',
+				InputArgument::REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_DELETE_USERNAME')
+			)
+			->addOption(
+				'delete-posts',
+				null,
+				InputOption::VALUE_NONE,
+				$this->language->lang('CLI_DESCRIPTION_USER_DELETE_OPTION_POSTS')
+			)
+		;
+	}
+
+	/**
+	 * Executes the command user:delete
+	 *
+	 * Deletes a user from the database. An option to delete the user's posts
+	 * is available, by default posts will be retained.
+	 *
+	 * @param InputInterface  $input  The input stream used to get the options
+	 * @param OutputInterface $output The output stream, used to print messages
+	 *
+	 * @return int 0 if all is well, 1 if any errors occurred
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output)
+	{
+		$name = $input->getArgument('username');
+		$mode = ($input->getOption('delete-posts')) ? 'remove' : 'retain';
+
+		if ($name)
+		{
+			$io = new SymfonyStyle($input, $output);
+
+			if (!$user_row = $this->get_user_data($name))
+			{
+				$io->error($this->language->lang('NO_USER'));
+				return 1;
+			}
+
+			if (!function_exists('user_delete'))
+			{
+				require($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+			}
+
+			user_delete($mode, $user_row['user_id'], $user_row['username']);
+
+			$this->log->add('admin', ANONYMOUS, '', 'LOG_USER_DELETED', false, array($user_row['username']));
+
+			$io->success($this->language->lang('USER_DELETED'));
+		}
+
+		return 0;
+	}
+
+	/**
+	 * Interacts with the user.
+	 * Confirm they really want to delete the account...last chance!
+	 *
+	 * @param InputInterface  $input  An InputInterface instance
+	 * @param OutputInterface $output An OutputInterface instance
+	 */
+	protected function interact(InputInterface $input, OutputInterface $output)
+	{
+		$helper = $this->getHelper('question');
+
+		$question = new ConfirmationQuestion(
+			$this->language->lang('CLI_USER_DELETE_CONFIRM', $input->getArgument('username')),
+			false
+		);
+
+		if (!$helper->ask($input, $output, $question))
+		{
+			$input->setArgument('username', false);
+		}
+	}
+
+	/**
+	 * Get the user's data from the database
+	 *
+	 * @param string $name A user name
+	 * @return mixed The user's id and username if they exist, false otherwise.
+	 */
+	protected function get_user_data($name)
+	{
+		$sql = 'SELECT user_id, username
+			FROM ' . USERS_TABLE . "
+			WHERE username_clean = '" . $this->db->sql_escape(utf8_clean_string($name)) . "'";
+		$result = $this->db->sql_query_limit($sql, 1);
+		$user_row = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		return $user_row;
+	}
+}
diff --git a/tests/console/user/delete_test.php b/tests/console/user/delete_test.php
new file mode 100644
index 0000000000..5162358713
--- /dev/null
+++ b/tests/console/user/delete_test.php
@@ -0,0 +1,169 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Tester\CommandTester;
+use phpbb\console\command\user\delete;
+
+class phpbb_console_command_user_delete_test extends phpbb_database_test_case
+{
+	protected $db;
+	protected $user;
+	protected $language;
+	protected $log;
+	protected $command_name;
+	protected $question;
+	protected $phpbb_root_path;
+	protected $php_ext;
+
+	public function getDataSet()
+	{
+		return $this->createXMLDataSet(dirname(__FILE__) . '/fixtures/config.xml');
+	}
+
+	public function setUp()
+	{
+		global $db, $cache, $config, $user, $phpbb_dispatcher, $phpbb_container, $phpbb_root_path, $phpEx;
+
+		$phpbb_dispatcher = new phpbb_mock_event_dispatcher();
+		$phpbb_container = new phpbb_mock_container_builder();
+		$phpbb_container->set('cache.driver', new phpbb_mock_cache());
+		$phpbb_container->set('notification_manager', new phpbb_mock_notification_manager());
+
+		$cache = $phpbb_container->get('cache.driver');
+
+		$config = new \phpbb\config\config(array());
+
+		$db = $this->db = $this->new_dbal();
+
+		$this->language = $this->getMockBuilder('\phpbb\language\language')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->language->expects($this->any())
+			->method('lang')
+			->will($this->returnArgument(0));
+		$user = $this->user = $this->getMock('\phpbb\user', array(), array(
+			$this->language,
+			'\phpbb\datetime'
+		));
+
+		$this->log = $this->getMockBuilder('\phpbb\log\log')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$phpbb_container->set('auth.provider.db', new phpbb_mock_auth_provider());
+		$provider_collection = new \phpbb\auth\provider_collection($phpbb_container, $config);
+		$provider_collection->add('auth.provider.db');
+		$phpbb_container->set(
+			'auth.provider_collection',
+			$provider_collection
+		);
+
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $phpEx;
+
+		parent::setUp();
+	}
+
+	public function test_delete()
+	{
+		$command_tester = $this->get_command_tester();
+
+		$this->assertEquals(3, $this->get_user_id('Test'));
+
+		$this->question->setInputStream($this->getInputStream("yes\n"));
+
+		$command_tester->execute(array(
+			'command'			=> $this->command_name,
+			'username'			=> 'Test',
+			'--delete-posts'	=> false,
+		));
+
+		$this->assertNull($this->get_user_id('Test'));
+		$this->assertContains('USER_DELETED', $command_tester->getDisplay());
+	}
+
+	public function test_delete_non_user()
+	{
+		$command_tester = $this->get_command_tester();
+
+		$this->assertNull($this->get_user_id('Foo'));
+
+		$this->question->setInputStream($this->getInputStream("yes\n"));
+
+		$command_tester->execute(array(
+			'command'			=> $this->command_name,
+			'username'			=> 'Foo',
+			'--delete-posts'	=> false,
+		));
+
+		$this->assertContains('NO_USER', $command_tester->getDisplay());
+	}
+
+	public function test_delete_cancel()
+	{
+		$command_tester = $this->get_command_tester();
+
+		$this->assertEquals(3, $this->get_user_id('Test'));
+
+		$this->question->setInputStream($this->getInputStream("no\n"));
+
+		$command_tester->execute(array(
+			'command'			=> $this->command_name,
+			'username'			=> 'Test',
+			'--delete-posts'	=> false,
+		));
+
+		$this->assertNotNull($this->get_user_id('Test'));
+	}
+
+	public function get_command_tester()
+	{
+		$application = new Application();
+		$application->add(new delete(
+			$this->user,
+			$this->db,
+			$this->language,
+			$this->log,
+			$this->phpbb_root_path,
+			$this->php_ext
+		));
+
+		$command = $application->find('user:delete');
+		$this->command_name = $command->getName();
+		$this->question = $command->getHelper('question');
+
+		return new CommandTester($command);
+	}
+
+	public function get_user_id($username)
+	{
+		$sql = 'SELECT user_id
+			FROM ' . USERS_TABLE . '
+			WHERE ' . 'username = ' . "'" . $username . "'";
+		$result = $this->db->sql_query($sql);
+		$row = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		return $row['user_id'];
+	}
+
+	public function getInputStream($input)
+	{
+		$stream = fopen('php://memory', 'r+', false);
+		fputs($stream, $input);
+		rewind($stream);
+
+		return $stream;
+	}
+}