diff --git a/trytond/ir/lang.py b/trytond/ir/lang.py
index 9a7728815c..90297515ed 100644
--- a/trytond/ir/lang.py
+++ b/trytond/ir/lang.py
@@ -204,26 +204,35 @@ class Lang(ModelSQL, ModelView):
 
     @classmethod
     def create(cls, vlist):
+        pool = Pool()
+        Translation = pool.get('ir.translation')
         # Clear cache
         cls._lang_cache.clear()
-        return super(Lang, cls).create(vlist)
+        languages = super(Lang, cls).create(vlist)
+        Translation._get_language_cache.clear()
+        return languages
 
     @classmethod
     def write(cls, langs, vals):
+        pool = Pool()
+        Translation = pool.get('ir.translation')
         # Clear cache
         cls._lang_cache.clear()
         super(Lang, cls).write(langs, vals)
+        Translation._get_language_cache.clear()
 
     @classmethod
     def delete(cls, langs):
         pool = Pool()
         Config = pool.get('ir.configuration')
+        Translation = pool.get('ir.translation')
         for lang in langs:
             if lang.code == Config.get_language():
                 cls.raise_user_error('delete_default')
         # Clear cache
         cls._lang_cache.clear()
         super(Lang, cls).delete(langs)
+        Translation._get_language_cache.clear()
 
     @staticmethod
     def _group(lang, s, monetary=None):
diff --git a/trytond/ir/translation.py b/trytond/ir/translation.py
index 5b92df8e30..d94d9da008 100644
--- a/trytond/ir/translation.py
+++ b/trytond/ir/translation.py
@@ -71,6 +71,7 @@ class Translation(ModelSQL, ModelView):
             searcher='search_model')
     _translation_cache = Cache('ir.translation', size_limit=10240,
         context=False)
+    _get_language_cache = Cache('ir.translation')
 
     @classmethod
     def __setup__(cls):
@@ -153,11 +154,15 @@ class Translation(ModelSQL, ModelView):
 
     @classmethod
     def get_language(cls):
+        result = cls._get_language_cache.get(None)
+        if result is not None:
+            return result
         pool = Pool()
         Lang = pool.get('ir.lang')
         langs = Lang.search([])
-        res = [(lang.code, lang.name) for lang in langs]
-        return res
+        result = [(lang.code, lang.name) for lang in langs]
+        cls._get_language_cache.set(None, result)
+        return result
 
     @classmethod
     def get_src_md5(cls, src):