J. Frank Dobie High School is a public secondary school located in Houston, Texas. Founded in 1968, it is named after the Texas writer of the same name. It houses grades 10-12. A Ninth Grade Center was opened recently to help with the influx of students. It is the largest school in the Pasadena Independent School District. The school mascots are the Longhorns and the official colors are orange and black, similar to that of the University of Texas at Austin.

Dobie High School was originally located at 11111 Beamer Rd. However, overcrowding problems at the Beamer campus and the rapidly growing population in the South Belt area led city officials and voters to pass a $199.05 million bond in February 2000. This included a new 490,000-square-foot (46,000 m²) location to be built at 10220 Blackhawk Blvd which opened in 2003.

The original Beamer location is now occupied by Beverly Hills Intermediate School.