The 2012–13 TCU Horned Frogs basketball team represented Texas Christian University in the 2012–13 NCAA Division I men's basketball season.

This was head coach Trent Johnson's first season at TCU.

They played their home games at Daniel–Meyer Coliseum in Fort Worth, Texas and were in their first season as members of the Big 12 Conference.

They lost in the first round of the Big 12 tournament to Texas.

On February 8, 2013, TCU earned their first ever Big 12 conference victory with a 62–55 upset win over 5th ranked Kansas.