Keller High School is a public high school located in the city of Keller, Texas and is served by the Keller Independent School District. The school educates students in the majority of the city of Keller, western Southlake, northwestern Colleyville, northern North Richland Hills, and most of Westlake, including the Vaquero development. It has been recognized as a National Blue Ribbon School for the 1999-2000 school year. As of 2011, Keller High School is rated "recognized" by the Texas Education Agency and is part of one of the largest districts in Texas to have an overall recognized rating. Per the 2017 US News Best High Schools System official numbers, 2,645 students attended the school.
Keller High School currently has a JROTC program. The Junior Reserve Officer Training Corps is a federal program sponsored by the United States Armed Forces in high schools and also in some middle schools across the United States and United States military bases across the world. However, the program takes place at Central High School, a neighboring school in the KISD. The program, which consists of participants from all 4 KISD high schools, has won numerous awards and recognition.
In 2017, Keller Boys' Varsity Basketball Team went to the state championship in San Antonio, Texas but lost to Wagner High School in the semifinals at the Alamodome with a crowd of more than 12,000 spectators at the game. TCU-bound R.J. Nembhard led the team that year. He was a 4-star recruit and was 11th ranked in the state of Texas basketball recruiting. He averaged 28 points per game in his senior year and led the team in assists as well.
Softball
Keller High Softball has won 4 state championships in the 5A & 6A classes of Texas UIL. Their championships occurred in 2003, 2005, 2016, and 2017. The 2003 & 2005 State Champion teams were coached by Moe Fritz. The 2016 & 2017 State Champion teams were coached by Bryan Poehler. As of 2017, Keller High school has graduated 63 players who have gone on to play softball in college. The softball team is annually one of the most dominant softball teams in Texas.
The Keller High School Band has received numerous awards over the years. The band placed 2nd at the 1999 Texas 4A State Marching Band Contest, and was the 1999 TMEA 4A Honor Band. They have been honored five times by the Foundation for Music Education as a National Winner in the National Wind Band Honors Project. The marching band was awarded the 2015 Sudler Shield of Honor by the John Philip Sousa Foundation, making them one of only 76 band programs worldwide to hold this honor. In 2018, the Keller High Band placed in 9th at the 2018 UIL 6A State Marching Band Contest, as well as performing at the annual Macy's Day Parade in New York City.
Keller High School Choir
The Keller High School Choir consists of five concert ensembles and one show choir. In 2014, the Keller Chanteurs Varsity Treble Choir became the first choral ensemble from Keller ISD to perform at the TMEA Convention. In 2017, the Keller Chanteurs Varsity Treble Choir became the first ensemble from Keller ISD to perform at the National ACDA Conference. The Keller "Tribe" Show Choir has won numerous awards which include being a 4 time grand champion of the Lone Star Show Choir Invitational.
Notable people
;Alumni
Mario Price, college football coach, director of coaching