The galaxy is a big place, with hundreds of inhabited planets and thousands if not millions of individual cultures. There are more cultures than could possibly be documented here; however, some of the 'better known' cultures will be documented here both for reference and to help provide character background ideas.
Feel free to contact Jarvis to get a wiki account, so that you can document your own culture here! Or submit the information and Jarvis will post it for you.
Cultures of the Galaxy