WordPress Multilanguage
This theme is compatible with WPML plugin (not included with the theme) that makes it easy to build multilingual site. It’s powerful enough for corporate sites, yet simple for blogs. The default install comes with over 40 languages. You can also add your own language variants (like Canadian French or Mexican Spanish) using WPML’s languages editor. You can arrange different language contents in the same domain (in language directories), in sub-domains or in completely different domains.