Katy High School is a high school located in Katy, Texas which serves grades 9 through 12. It is a part of the Katy Independent School District. The school serves the City of Katy and draws students from Harris County, Waller County, and Fort Bend County.

Katy High School opened in 1898 to serve the children of local rice farmers. Its first graduating class was in 1900.

Softball state champions (2)

• 6A: 2015, 2019

Football state champions (9)

• 1A: 1959
• 5A D1: 1997
• 5A D2: 2000, 2003, 2007, 2008, 2012
• 6A D2: 2015, 2020

• Nic Anderson (2022) – college football wide receiver for the Oklahoma Sooners
• Rodney Anderson (2015) – NFL running back
• Ryder Anderson (2017) – NFL defensive end for the New York Giants
• Clint Black – country singer
• Davis Cleveland – actor
• Andy Dalton (2006) – NFL quarterback for the Carolina Panthers
• Joel Dehlin – former Chief Information Officer for the LDS Church
• John Dehlin – Mormon podcaster
• Jorge Diaz (1992) – NFL offensive tackle for the Tampa Bay Buccaneers and the Dallas Cowboys.
• Paddy Fisher (2016) – all-state LB and college football player at Northwestern Current AFL LB for the Michigan Panthers
• Terrence Frederick – NFL defensive back for the New Orleans Saints
• Eric Heitmann (1997) – 10-year starting NFL center for the San Francisco 49ers
• Bo Levi Mitchell (2008) – CFL quarterback for the Hamilton Tiger-Cats
• Ryan Mouton – NFL cornerback (2009-2013)
• Sage Northcutt – Professional MMA Fighter. Currently fights in ONE Championship.
• Moro Ojomo (2018)– NFL Defensive Tackle for the Philadelphia Eagles
• Mike Swick – retired professional Mixed Martial Artist, competed on the inaugural season of The Ultimate Fighter
• Keith Whittington- Class of 1986. William Nelson Cromwell Professor of Politics at Princeton University.
• Renée Zellweger – actress

• Official website