The 1920 Washington State Cougars football team was an American football team that represented Washington State College during the 1920 college football season. Head coach Gus Welch led the team to a 1–1 mark in the PCC and 5–1 overall. This year marked the team's adoption of the "Cougars" nickname.
Washington State Cougars were founded in 1918
They Washington State Cougars could have been founded in 1918 but played in 1920.