Jack Marshman (born December 19, 1989) is a retired Welsh professional mixed martial artist who competed in the Middleweight division.

A professional competitor since 2010, he has competed for Ultimate Fighting Championship (UFC), BAMMA and Cage Warriors.

[10] Marshman fought in the European circuit and he was the Middleweight Cage Warriors Fighting Championship (CWFC) Champion[8] He amassed a record of 20-5 prior joining UFC.

[19] Marshman was expected to face Elizeu Zaleski dos Santos on 17 March 2018 at UFC Fight Night 127.

[22] Subsequently, Marshman was removed from the card two days before the event for medical issues surrounding his weight cut and his fight with Scott was scrapped.

[28] Marshman received a formal warning from the military due to participating in the fight week against orders.

[33] Marshman was expected to face Kevin Holland 21 March 2020 at UFC Fight Night: Woodley vs.

[35] Mashman faced Sean Strickland, replacing Wellington Turman, on 31 October 2020 at UFC Fight Night 181.