The 2018–19 TCU Horned Frogs men's basketball team represented Texas Christian University in the 2018–19 NCAA Division I men's basketball season, led by head coach Jamie Dixon in his third 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 received an at-large bid to the NIT where they defeated Sam Houston State, Nebraska and Creighton to advance to the semifinals where they lost to in conference member Texas.

They lost in the quarterfinals of the Big 12 tournament to Kansas State.

6 seed in the Midwest region where they lost in the first round to Syracuse.