The main titles of the Street Fighter fighting game series have introduced a varied cast of 87 characters from the main series, and 34 from several spin-offs, for a total of 121 playable characters who originate from 24 different countries around the world, each with his or her unique fighting style. This is a list of playable characters and non-playable opponents from the whole franchise. They are categorized based on the game in which they first became playable, including the original Street Fighter game, the Street Fighter II series, the Street Fighter Alpha series, the Street Fighter III series, the Street Fighter IV series, Street Fighter V, Street Fighter 6 and other related games.

Street Fighter is a Japanese media franchise centered on a series of fighting games developed and published by Capcom. The first game in the series was released in 1987, followed by six other main series games, various spin-offs and crossovers, and numerous appearances in other media. Its best-selling 1991 release Street Fighter II established many of the conventions of the one-on-one fighting genre.