Yakuza 4 is a video game developed and released by Sega for the PlayStation 3. The game was introduced on July 24, 2009. A promotional video was presented at the 2009 Tokyo Game Show, and a preview of the main plot was released on January 13, 2010. The sequel to Yakuza 3, it was released on March 18, 2010 in Japan after a playable demo was released on the Japanese PlayStation Store on March 5. Yakuza 4 was released in Europe and North America in March 2011.

The game received an Award for Excellence at the 2010 Japan Game Awards, and received a score of 38 out of 40 from Famitsu. It has a 79-percent rating on GameRankings based on 40 reviews and a valuation of 78 out of 100 on Metacritic, based on 59 reviews.