The 2017–18 TCU Horned Frogs men's basketball team represented Texas Christian University in the 2017–18 NCAA Division I men's basketball season, led by head coach Jamie Dixon in his second season at TCU. The Horned Frogs competed as members of the Big 12 Conference and played their home games at Schollmaier Arena in Fort Worth, Texas. They finished the season 21–12, 9–9 in Big 12 play to finish in fifth place. They lost in the quarterfinals of the Big 12 tournament to Kansas State. They received an at-large bid to the NCAA tournament, their first appearance in 20 years. Seeded No. 6 in the Midwest region, TCU lost in the first round to Syracuse.