diff --git a/catavatar/lang/cs/messages.po b/catavatar/lang/cs/messages.po
new file mode 100644
index 00000000..c2685971
--- /dev/null
+++ b/catavatar/lang/cs/messages.po
@@ -0,0 +1,51 @@
+# ADDON catavatar
+# Copyright (C)
+# This file is distributed under the same license as the Friendica catavatar addon package.
+# 
+# 
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: \n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2018-04-13 09:35+0000\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: Lorem Ipsum <aditoo@seznam.cz>, 2018\n"
+"Language-Team: Czech (https://www.transifex.com/Friendica/teams/12172/cs/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: cs\n"
+"Plural-Forms: nplurals=4; plural=(n == 1 && n % 1 == 0) ? 0 : (n >= 2 && n <= 4 && n % 1 == 0) ? 1: (n % 1 != 0 ) ? 2 : 3;\n"
+
+#: catavatar.php:60
+msgid "Use Cat as Avatar"
+msgstr "Použít kočku jako avatar"
+
+#: catavatar.php:61
+msgid "More Random Cat!"
+msgstr "Další náhodné kočky!"
+
+#: catavatar.php:62
+msgid "Reset to email Cat"
+msgstr ""
+
+#: catavatar.php:64
+msgid "Cat Avatar Settings"
+msgstr "Nastavení Cat Avatar"
+
+#: catavatar.php:100
+msgid "The cat hadn't found itself."
+msgstr "Kočka se nenašla."
+
+#: catavatar.php:109
+msgid "There was an error, the cat ran away."
+msgstr "Vyskytla se chyba, kočka utekla."
+
+#: catavatar.php:115
+msgid "Profile Photos"
+msgstr "Profilové fotky"
+
+#: catavatar.php:130
+msgid "Meow!"
+msgstr "Mňau!"
diff --git a/catavatar/lang/cs/strings.php b/catavatar/lang/cs/strings.php
new file mode 100644
index 00000000..afd980c7
--- /dev/null
+++ b/catavatar/lang/cs/strings.php
@@ -0,0 +1,16 @@
+<?php
+
+if(! function_exists("string_plural_select_cs")) {
+function string_plural_select_cs($n){
+	$n = intval($n);
+	return ($n == 1 && $n % 1 == 0) ? 0 : ($n >= 2 && $n <= 4 && $n % 1 == 0) ? 1: ($n % 1 != 0 ) ? 2 : 3;;
+}}
+;
+$a->strings["Use Cat as Avatar"] = "Použít kočku jako avatar";
+$a->strings["More Random Cat!"] = "Další náhodné kočky!";
+$a->strings["Reset to email Cat"] = "";
+$a->strings["Cat Avatar Settings"] = "Nastavení Cat Avatar";
+$a->strings["The cat hadn't found itself."] = "Kočka se nenašla.";
+$a->strings["There was an error, the cat ran away."] = "Vyskytla se chyba, kočka utekla.";
+$a->strings["Profile Photos"] = "Profilové fotky";
+$a->strings["Meow!"] = "Mňau!";