Here is a list of the supported languages for all platforms.
 

		Interface		Full Audio		Subtitles
English		x		x		x
French		x		x		x
Italian		x				x
German		x		x		x
Spanish		x				x
Portuguese (Brazil)		x		x		x
Simplified Chinese		x		x		x
Traditional Chinese		x		x		x
Korean		x		x		x
Japanese		x		x		x
Polish		x				x
Russian		x				x

The available language options will vary from version to version.