| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Derek | Downey | 6' 1" | 185 lbs. | -- | Orthodox | 11 | 4 | 0 | ||
| John | Doyle | The Iron Bull | 5' 11" | 205 lbs. | -- | Orthodox | 11 | 22 | 0 | |
| Edson | Drago | 6' 4" | 220 lbs. | -- | Orthodox | 11 | 7 | 0 | ||
| Kyle | Driscoll | KD | 5' 11" | 145 lbs. | 74.0" | Orthodox | 12 | 3 | 0 | |
| Chris | Drumm | 5' 8" | 145 lbs. | -- | 0 | 1 | 0 | |||
| Tomasz | Drwal | Gorilla | 6' 1" | 205 lbs. | 76.0" | Orthodox | 21 | 5 | 1 | |
| Robert | Drysdale | 6' 3" | 205 lbs. | -- | Orthodox | 7 | 0 | 0 | ||
| Dricus | Du Plessis | Stillknocks | 6' 1" | 185 lbs. | 76.0" | Switch | 19 | 2 | 0 | |
| Hugo | Duarte | 6' 0" | 240 lbs. | -- | Orthodox | 6 | 3 | 0 | ||
| Antonio | Duarte | Tigre | 5' 7" | 135 lbs. | -- | 19 | 7 | 0 | ||
| Joe | Duarte | -- | 155 lbs. | -- | 10 | 4 | 0 | |||
| Emily | Ducote | Gordinha | 5' 2" | 115 lbs. | 63.0" | Orthodox | 12 | 8 | 0 | |
| Viktoriia | Dudakova | 5' 5" | 115 lbs. | 67.0" | Orthodox | 6 | 0 | 0 | ||
| Milana | Dudieva | 5' 3" | 135 lbs. | -- | Orthodox | 11 | 6 | 0 | ||
| Adin | Duenas | 5' 6" | 145 lbs. | -- | 6 | 1 | 0 | |||
| Todd | Duffee | 6' 3" | 260 lbs. | 78.0" | Orthodox | 9 | 3 | 0 | ||
| Joe | Duffy | Irish | 5' 10" | 155 lbs. | 73.0" | Orthodox | 16 | 5 | 0 | |
| Alexis | Dufresne | Sneaky Zebra | 5' 9" | 135 lbs. | -- | Orthodox | 6 | 3 | 0 | |
| Jessamyn | Duke | The Gun | 5' 11" | 135 lbs. | 73.0" | Orthodox | 3 | 5 | 0 | |
| Isaac | Dulgarian | The Midwest Choppa | 5' 7" | 145 lbs. | -- | Orthodox | 5 | 0 | 0 | |
| Kelly | Dullanty | Psycho | 5' 8" | 155 lbs. | -- | Orthodox | 4 | 2 | 0 | |
| Sedriques | Dumas | The Reaper | 6' 2" | 185 lbs. | 79.0" | Orthodox | 7 | 1 | 0 | |
| Norma | Dumont | The Immortal | 5' 7" | 145 lbs. | 67.0" | Orthodox | 9 | 2 | 0 | |
| Chris | Duncan | The Problem | 5' 10" | 155 lbs. | 71.0" | Orthodox | 10 | 1 | 0 |