William Michael Withycombe (born November 18, 1964) is a former professional American and Canadian football offensive lineman who played three seasons in the Canadian Football League (CFL), mainly for the Baltimore Stallions. Previously he played four seasons in the NFL for three different teams after being drafted in the fifth round of the 1988 NFL Draft by the New York Jets.^[1] He played college football at Fresno State University. He was a part of the Stallions' Grey Cup victory in 1995. He won the CFL's Most Outstanding Offensive Lineman Award in 1995.

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On April 17, 2017, while in Las Vegas, Withycombe received media attention for stepping in to protect a female neighbor and her daughter from a man who was threatening to kill them.^[2] Withycombe, who had been sleeping in his home, was awakened by the sound of shouting.^[2] He put on the first garment at hand - a kilt - and headed outside to assess the situation.^[2] After Withycombe asked the intruder to leave, the man took a swing at him, so Withycombe tackled him and restrained him until police arrived on the scene.^[2] News reports indicate that Withycombe's unusual attire was a source of great amusement for the responding officers.^[2]