Douglas Garrett Marshall (born February 3, 1977) is an American former professional mixed martial artist.
Born and raised in Visalia, California, Marshall was a star linebacker for his high school football team but was expelled for fighting.
When TPF Middleweight Champion David Loiseau pulled out of a TPF 10 fight with Giva Santana due to an undisclosed injury requiring surgery, Marshall stepped in to face Santana in a middleweight non-title bout.
He next competed on India's Super Fight League's third event, SFL 3, against Zelg Galešić.
Marshall then faced Sultan Aliev in the semifinals at Bellator 92, He won via split decision.