You can specify the locale by setting the Accept-Language HTTP header in your request. Alternatively, you can add a locale=XXX parameter to your request but HTTP header specification is preferred. We currently support en (default), es, fr, de, it, ja, th, tr, ko, ru, pt, and id.

If nothing is specified, for geographical entities (e.g., city names), we’ll fall back to using the language that’s most popular in the country for that venue.

Foursquare also supports many country-specific subcategories in our venue categories. “Supported Countries” are listed in our category tree for categories that we think will only apply in certain countries.