Braulio Alonso High School is a public high school located in Tampa, Florida, United States. It serves grades 9-12 for the Hillsborough County Public Schools.

Alonso High is named after Braulio Alonso. He served on the board of directors in the National Education Association from 1958 to 1964, and was elected as its president in 1967, the first Hispanic to hold that office.^[4]

Alonso is the fifth school in Hillsborough County to have an International Baccalaureate Programme with the other IB high schools being King, Strawberry Crest, Hillsborough, and Robinson. The program was established in the 2020-2021 school year and offers a Pre-IB curriculum for grades 9 and 10, and an IB Diploma Programme for grades 11 and 12. Alonso received the status of a full-fledged IB diploma school for the 2022–2023 school year. The first class of IB students graduated in May 2024.

• Student Diversity^[5]
  • 57.2% Hispanic
  • 28.0% White
  • 6.7% Black
  • 4.8% Asian
  • 3.0% Two or more races
  • 0.2% American Indian/Alaska Native
  • 0.2% Native Hawaiian/Pacific Islander

Alonso High School currently offers the following sports:

Sandy Bunkin was the school's first principal, and retired after five years. She was replaced by Louie Diaz, who was the Assistant Principal of Athletics for the first two years the school was open, then became the principal of Jefferson High School. Both principals had buildings in the school named after them, the Sandy Bunkin Auditorium which is located near the front of the school and is where many concerts by the band and orchestra are held and the Louie Diaz Athletic Complex which is located near the football field. Kenneth Hart took over the role in 2015 followed by James Harris in 2021.

• Anthony Chickillo, National Football League (NFL) player^[10]
• Howell Emanuel Donaldson III, serial killer^{[11][12][13][14]}
• Leger Douzable, NFL player^[15]
• Alex Faedo, Major League Baseball (MLB) player^[16]
• Jose Fernandez, MLB player^[17]
• Ryan Fernandez, MLB player^[18]