diff --git a/CHANGES.txt b/CHANGES.txt
index 00d69d4..8bc5638 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -4,6 +4,8 @@ Changes
 Next release
 ------------
 
+- Added Polish translation, thanks to Jędrzej Nowak.
+
 - Moved to Pylons Project GitHub (https://github.com/Pylons/colander).
 
 - Add tox.ini for testing purposes.
diff --git a/colander/locale/pl/LC_MESSAGES/colander.mo b/colander/locale/pl/LC_MESSAGES/colander.mo
new file mode 100644
index 0000000..ee01d95
Binary files /dev/null and b/colander/locale/pl/LC_MESSAGES/colander.mo differ
diff --git a/colander/locale/pl/LC_MESSAGES/colander.po b/colander/locale/pl/LC_MESSAGES/colander.po
new file mode 100644
index 0000000..5b89824
--- /dev/null
+++ b/colander/locale/pl/LC_MESSAGES/colander.po
@@ -0,0 +1,119 @@
+# Polish translations for colander.
+# Copyright (C) 2011
+# This file is distributed under the same license as the colander project.
+# FIRST AUTHOR <pigmej@gmail.com>, 2011.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: colander 0.8\n"
+"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
+"POT-Creation-Date: 2010-09-10 08:00+0600\n"
+"PO-Revision-Date: 2011-03-17 19:05+0100\n"
+"Last-Translator: Jędrzej Nowak <pigmej@gmail.com>\n"
+"Language-Team: pl <LL@li.org>\n"
+"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && "
+"(n%100<10 || n%100>=20) ? 1 : 2)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 0.9.5\n"
+
+#: colander/__init__.py:199
+msgid "Invalid value"
+msgstr "Niepoprawna wartość"
+
+#: colander/__init__.py:232
+msgid "String does not match expected pattern"
+msgstr "Nie pasuje do oczekiwanego wzorca"
+
+#: colander/__init__.py:247
+msgid "Invalid email address"
+msgstr "Niepoprawny adres email"
+
+#: colander/__init__.py:276
+msgid "${val} is less than minimum value ${min}"
+msgstr "${val} jest mniejsza niż minimalna wartość ${min}"
+
+#: colander/__init__.py:277
+msgid "${val} is greater than maximum value ${max}"
+msgstr "${val} jest większa niż maksymalna wartość ${max}"
+
+#: colander/__init__.py:309
+msgid "Shorter than minimum length ${min}"
+msgstr "Krótsze niż minimalna długość ${min}"
+
+#: colander/__init__.py:315
+msgid "Longer than maximum length ${max}"
+msgstr "Dłuższa niż maksymalna długość ${max}"
+
+#: colander/__init__.py:328
+msgid "\"${val}\" is not one of ${choices}"
+msgstr "\"${val}\" nie jest żadnym z ${choices}"
+
+#: colander/__init__.py:398
+msgid "\"${val}\" is not a mapping type: ${err}"
+msgstr "\"${val}\" nie jest zmapowanym typem: ${err}"
+
+#: colander/__init__.py:422
+msgid "Unrecognized keys in mapping: \"${val}\""
+msgstr "Nieznane klucze w mapowaniu: \"${val}\""
+
+#: colander/__init__.py:477 colander/__init__.py:563
+msgid "\"${val}\" is not iterable"
+msgstr "\"${val}\" nie jest iterable"
+
+#: colander/__init__.py:485
+msgid ""
+"\"${val}\" has an incorrect number of elements (expected ${exp}, was "
+"${was})"
+msgstr "\"${val}\" ma niepoprawną ilość elementów (oczekiwano ${exp}, było "
+"${was})"
+
+#: colander/__init__.py:725
+msgid "\"${val} cannot be serialized: ${err}"
+msgstr "\"${val} nie może zostać zserializowana: ${err}"
+
+#: colander/__init__.py:738
+msgid "${val} is not a string: %{err}"
+msgstr "${val} nie jest stringiem: %{err}"
+
+#: colander/__init__.py:759 colander/__init__.py:770
+msgid "\"${val}\" is not a number"
+msgstr "\"${val}\" nie jest liczbą"
+
+#: colander/__init__.py:764 colander/__init__.py:1263
+msgid "Required"
+msgstr "Wymagane"
+
+#: colander/__init__.py:844
+msgid "${val} is not a string"
+msgstr "${val} nie jest stringiem"
+
+#: colander/__init__.py:904 colander/__init__.py:921 colander/__init__.py:931
+msgid "relative name \"${val}\" irresolveable without package"
+msgstr ""
+
+#: colander/__init__.py:961
+msgid "\"${val}\" has no __name__"
+msgstr "\"${val}\" nie ma __name__"
+
+#: colander/__init__.py:967
+msgid "\"${val}\" is not a string"
+msgstr "\"${val}\" nie jest stringiem"
+
+#: colander/__init__.py:976
+msgid "The dotted name \"${name}\" cannot be imported"
+msgstr ""
+
+#: colander/__init__.py:1024 colander/__init__.py:1101
+msgid "Invalid date"
+msgstr "Niepoprawna data"
+
+#: colander/__init__.py:1040
+msgid "\"${val}\" is not a datetime object"
+msgstr "\"${val}\" nie jest obiektem datetime"
+
+#: colander/__init__.py:1112
+msgid "\"${val}\" is not a date object"
+msgstr "\"${val}\" nie jest obiektem date"
+