| Diabolical Fun | |
| Type: | studio |
| Artist: | Illogic |
| Cover: | Diabolical Fun.jpg |
| Genre: | Hip hop |
| Label: | Weightless Recordings |
| Producer: | Ill Poetic |
| Prev Title: | Celestial Clockwork |
| Prev Year: | 2004 |
| Next Title: | A Man Who Thinks with His Own Mind |
| Next Year: | 2016 |
Diabolical Fun is the fourth solo studio album by American rapper Illogic. It was released in 2009. The album was entirely produced by Ill Poetic.
Chet Betz of Cokemachineglow said: "Stellar closing track and a few highlights aside, Diabolical Fun sounds like an artist working just a little too far outside his comfort zone, trying to force his pentagonal peg into a round hole."