The 1955 Wyoming Cowboys football team represented the University of Wyoming in the 1955 college football season. It was the Cowboys' 60th season and they competed as a member of the Skyline Conference. The team was led by head coach Phil Dickens, in his third year, and played their home games at War Memorial Stadium in Laramie, Wyoming. They finished with a record of eight wins and three losses (8–3, 5–2 Skyline) and with a win over Texas Tech in the 1956 Sun Bowl. The Cowboys offense scored 225 points, while the defense allowed 137 points.