Southwest High School is a 6A public high school in the Southwest Independent School District of San Antonio, Texas, USA. For the 2021-22 school year, the school was given a "B" by the Texas Education Agency.

Southwest High School has been serving southwestern Bexar County for over 68 years. Established in 1951, it has grown from a small rural high school with a graduating class of 11 students to a major 6A high school with over 2,000 students.

The Dragons participate in UIL District 28 6A competitions for Academic Team, Athletics, Band, Drama, Choir, Color Guard, and Dance. Other co-curricular and extra-curricular opportunities include NJROTC, National Honor Society, Best Buddies, Student Council, FFA, TAFE, DECA, Skills USA, FCCLA, and Academic Decathlon along with a FIRST Robotics program.

The Southwest Dragons compete in the following sports:

• Baseball
• Basketball
• Cross Country
• Football
• Golf
• Powerlifting
• Soccer
• Softball
• Swimming and Diving
• Tennis
• Track and Field
• Volleyball
• Waterpolo

Southwest High School offers a complete academic program including 18 dual credit classes, in association with Palo Alto College, as well as Advanced Placement classes in Science and English.

• Ty Detmer, Heisman Trophy winning quarterback who played in the National Football League for twelve seasons
• Chris Bordano, former American football linebacker in the National Football League
• Shea Serrano, New York Times bestselling author and writer.
• Destinee Hooker, 2012 summer Olympic volleyball athlete for Team USA. She won silver medal, but got best Spiker award for the 2012 summer Olympics.

• Southwest ISD