1927–28 Washington State Cougars men's basketball team

The 1927–28 Washington State Cougars men's basketball team represented Washington State College for the 1927–28 college basketball season. Led by second-year head coach Karl Schlademan, the Cougars were members of the Pacific Coast Conference and played their home games on campus in Pullman, Washington.

The Cougars were 7–17 overall in the regular season and 1–9 in conference play, last in the Northern division.

Schlademan was the track and field coach for the Cougars until 1940, but this was his final year as head basketball coach. He was succeeded by alumnus Jack Friel, who was the head coach at North Central High School in Spokane, and won the state title in his third and final season at NCHS in 1928. A former team captain and all-conference player under Fred Bohler, Friel led Washington State as head coach for three decades.