D
- Paul Daley – (UFC)
- Artiom Damkovsky – (M-1, Shooto)
- Mac Danzig – (KOTC, PRIDE, UFC)
- Karen Darabedyan – (WEC)
- Viacheslav Datsik – (Pankration, M-1)
- Marcus Davis – (UFC)
- Phil Davis – (Palace Fighting Championship, UFC)
- Tony DeSouza – (UFC)
- Edwin Dewees – (KOTC, UFC, Affliction)
- Nate Diaz – (WEC, Strikeforce, UFC)
- Nick Diaz – (PRIDE, Shooto, UFC, WEC, Elite XC, Strikeforce)
- Joe Doerksen – (DEEP, IFL, KOTC, UFC)
- C.B. Dollaway – (UFC)
- Junior dos Santos – (UFC)
- Edson Drago – (Cage Rage)
- Tomasz Drwal – (UFC)
- Joe "Hybrid" Duarte
- Todd Duffee – (UFC, SFL, DREAM)
- Evan Dunham – (Palace Fighting Championship, UFC)
Read more about this topic: List Of Male Mixed Martial Artists