diff --git a/phpBB/adm/style/installer_header.html b/phpBB/adm/style/installer_header.html
index a3b8eda825..39d86da179 100644
--- a/phpBB/adm/style/installer_header.html
+++ b/phpBB/adm/style/installer_header.html
@@ -20,7 +20,7 @@
 		<form method="post" action="#" id="language_selector">
 			<fieldset class="nobg">
 				<label for="language">{L_SELECT_LANG}{L_COLON}</label>
-				<select  id="language" name="language">
+				<select id="language" name="language">
 					<!-- BEGIN language_select_item -->
 					<option value="{language_select_item.VALUE}"<!-- IF language_select_item.SELECTED --> selected="selected"<!-- ENDIF -->>{language_select_item.NAME}</option>
 					<!-- END language_select_item -->
diff --git a/phpBB/phpbb/install/controller/helper.php b/phpBB/phpbb/install/controller/helper.php
index 25cde9239d..7048145565 100644
--- a/phpBB/phpbb/install/controller/helper.php
+++ b/phpBB/phpbb/install/controller/helper.php
@@ -339,6 +339,14 @@ class helper
 	protected function render_language_select($selected_language = null)
 	{
 		$langs = $this->lang_helper->get_available_languages();
+
+		// The first language will be selected by default. Unless a user has consciously included
+		// other languages in the installation process, it will be British English anyway.
+		if ($selected_language === null && count($langs))
+		{
+			$selected_language = $langs[0]['iso'];
+		}
+
 		foreach ($langs as $lang)
 		{
 			$this->template->assign_block_vars('language_select_item', array(
diff --git a/phpBB/phpbb/language/language_file_helper.php b/phpBB/phpbb/language/language_file_helper.php
index 83244d674f..809df8728e 100644
--- a/phpBB/phpbb/language/language_file_helper.php
+++ b/phpBB/phpbb/language/language_file_helper.php
@@ -65,6 +65,8 @@ class language_file_helper
 			$available_languages[] = $this->get_language_data_from_json($data);
 		}
 
+		usort($available_languages, [$this, 'sort_by_local_name']);
+
 		return $available_languages;
 	}
 
@@ -123,4 +125,14 @@ class language_file_helper
 			'turnstile_lang'	=> $data['extra']['turnstile-lang'] ?? '',
 		];
 	}
+
+	/**
+	 * Sorts the languages by their name instead of iso code
+	 *
+	 * @return array
+	 */
+	private static function sort_by_local_name($a, $b)
+	{
+		return $a['local_name'] > $b['local_name'];
+	}
 }