| Guilty by Affiliation | |
| Type: | Studio album |
| Artist: | WC |
| Cover: | WC - Guilty By Affilliation.png |
| Recorded: | 2006–07 |
| Studio: | Lench Mob Studios (Los Angeles, CA) |
| Label: | Lench Mob |
| Prev Title: | Terrorist Threats |
| Prev Year: | 2003 |
| Next Title: | Revenge of the Barracuda |
| Next Year: | 2011 |
Guilty by Affiliation is the third-solo studio album by American rapper WC. It was released on August 14, 2007 via Lench Mob Records. Production was handled by Hallway Productionz, Emile, D-Mac, Jelly Roll, Laylaw, Mr. Porter, Nottz, Rick Rock, The Legendary Traxster, and Ice Cube, who served as co-producer and executive producer. It features guest appearances from Ice Cube, Butch Cassidy, Snoop Dogg and The Game. The album peaked at number 49 on the Billboard 200, at number six on the Top R&B/Hip-Hop Albums and at number five on the Top Rap Albums in the United States. The song "This Is Los Angeles" was used in David Ayer's 2008 film Street Kings.