diff --git a/phpbb/topicprefixes/pl/acp_topic_prefixes.php b/phpbb/topicprefixes/pl/acp_topic_prefixes.php
new file mode 100644
index 0000000..200e523
--- /dev/null
+++ b/phpbb/topicprefixes/pl/acp_topic_prefixes.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ *
+ * Topic Prefixes extension for the phpBB Forum Software package.
+ *
+ * @copyright (c) 2016 phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ */
+
+/**
+ * DO NOT CHANGE
+ */
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+if (empty($lang) || !is_array($lang))
+{
+	$lang = array();
+}
+
+$lang = array_merge($lang, array(
+	'TOPIC_PREFIXES'			=> 'Prefiksy tematów',
+	'TOPIC_PREFIXES_EXPLAIN'	=> 'Z tej strony możesz zarządzać prefikasmi tematów dla forów.',
+
+	'TOPIC_PREFIX_TAG'			=> 'Etykieta prefiksu',
+	'TOPIC_PREFIX_ENABLED'		=> 'Włączony prefiks',
+	'TOPIC_PREFIXES_EMPTY'		=> 'Nie ustawiłeś prefiksów dla tego forum.',
+	'TOPIC_PREFIX_PLACEHOLDER'	=> '[Mój Prefiks]',
+
+	'CREATE_TOPIC_PREFIX'			=> 'Stwórz nowy prefiks',
+	'DELETE_TOPIC_PREFIX_CONFIRM'	=> 'Czy na pewno chcesz usunąć ten prefiks?',
+	'TOPIC_PREFIX_DELETED'			=> 'Prefiks tematu został usunięty.',
+
+	'TOPIC_PREFIX_TOGGLE_STATE'	=> array(
+		0	=> 'Kliknij aby włączyć',
+		1	=> 'Kliknij aby wyłączyć',
+	),
+
+	// Nested set exception messages
+	'TOPIC_PREFIXES_LOCK_FAILED_ACQUIRE'	=> 'Nastąpił błąd w rozszerzeniu prefiksu tematu z powodu nie otrzymania możliwośći blokady tabeli.',
+	'TOPIC_PREFIXES_INVALID_ITEM'			=> 'Żądany prefiks tematu nie istnieje.',
+	'TOPIC_PREFIXES_INVALID_PARENT'			=> 'Żadany prefiks tematu nie ma rodzica.',
+));
diff --git a/phpbb/topicprefixes/pl/info_acp_topic_prefixes.php b/phpbb/topicprefixes/pl/info_acp_topic_prefixes.php
new file mode 100644
index 0000000..d1efaad
--- /dev/null
+++ b/phpbb/topicprefixes/pl/info_acp_topic_prefixes.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ *
+ * Topic Prefixes extension for the phpBB Forum Software package.
+ *
+ * @copyright (c) 2016 phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ */
+
+/**
+ * DO NOT CHANGE
+ */
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+if (empty($lang) || !is_array($lang))
+{
+	$lang = array();
+}
+
+$lang = array_merge($lang, array(
+	'ACP_TOPIC_PREFIXES'	=> 'Prefiksy tematu',
+	'ACP_MANAGE_PREFIXES'	=> 'Zarządzaj prefiksami',
+
+	// ACP Log messages
+	'ACP_LOG_PREFIX_ADDED'		=> '<strong>Stworzono nowy prefiks tematu</strong><br />» %1$s na forum: %2$s',
+	'ACP_LOG_PREFIX_DELETED'	=> '<strong>Usunięto prefiks tematu</strong><br />» %1$s z forum: %2$s',
+));
diff --git a/phpbb/topicprefixes/pl/topic_prefixes.php b/phpbb/topicprefixes/pl/topic_prefixes.php
new file mode 100644
index 0000000..3cb64a5
--- /dev/null
+++ b/phpbb/topicprefixes/pl/topic_prefixes.php
@@ -0,0 +1,26 @@
+<?php
+/**
+ *
+ * Topic Prefixes extension for the phpBB Forum Software package.
+ *
+ * @copyright (c) 2016 phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ */
+
+/**
+ * DO NOT CHANGE
+ */
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+if (empty($lang) || !is_array($lang))
+{
+	$lang = array();
+}
+
+$lang = array_merge($lang, array(
+	'TOPIC_PREFIX'			=> 'Prefiks tematu',
+));