English Language Pack For Far Cry 3 ((better)) -

notes that language options are usually baked into the specific version you purchased, leading to the "interesting" (read: frustrated) user reviews for the game's lack of flexibility. Did you buy a regional version by mistake, or are you looking for a to change the UI?

For versions that do not natively show English in the menu, community-made tools like the "Far-Cry-3-Language-Selector" can automate the file-switching process. File Structure and Manual Fixes English Language Pack For Far Cry 3

Navigate to the tab and ensure English is selected. Manual Configuration Fixes notes that language options are usually baked into