The 1997–98 TCU Horned Frogs men's basketball team represented Texas Christian University as a member of the Southwestern Conference during the 1997–98 men's college basketball season. Led by head coach Billy Tubbs, TCU swept through the WAC regular season schedule to earn the regular season title and received an at-large bid to the NCAA tournament as No. 5 seed in the Midwest region. The Horned Frogs were upset in the opening round by No. 12 seed Florida State, 96–87. The team finished with a record of 27–6 (14–0 WAC).