UFC 109: Relentless was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on February 6, 2010 at the Mandalay Bay Events Center in Las Vegas, Nevada.
| Production | Dana White | Executive Producer |
| Production | Craig Borsari | Production Supervisor |
| Production | Bruce Connal | Producer |
| Production | Frank Fertitta III | Executive Producer |
| Production | Joe Silva | Casting |
| Production | Eric Talent | Producer |
| Crew | Allan Connal | Supervising Technical Director |
| Production | Lorenzo Fertitta | Executive Producer |
| Production | Marin Skific | Producer |
| Crew | J.J. Szokody | Supervising Technical Director |
| Directing | Anthony "Pasquale" Giordano | Director |
