Lakeland Senior High School, opened in 1902, is the oldest public high school in Lakeland, Florida, United States. The school was originally located on North Florida Avenue and was destroyed by fire in 1927. It is part of Polk County Public Schools. Lakeland Senior High School was the original high school in the city. It also shares its campus with Lois Cowles Harrison Center for the Visual and Performing Arts. Harrison students attend academic classes at Lakeland Senior High School.

Athletics

The school's athletic teams are known as the Lakeland Dreadnaughts. Lakeland's football team has won nine state championships, in 1986, 1996, 1999, 2004, 2005, 2006, 2018, 2022, 2023 Their cheer team has won 6 state championships 2019, 2020, 2021, 2022, 2023, 2024 and now two national championships in 2023, and 2024. The Dreadnaughts have played their home football games at Thomas W. Bryant Stadium since 1941. They won their inaugural game at the stadium on September 26, 1941, 33–0 over the Florida Military Academy.

Band

The Lakeland Senior High School Band was founded in 1924. They were the first of only eight High School bands in the country to have ever won 2 Sudler Flags of Honor. This distinction was awarded in 1986 and 1993.

Notable alumni

Old Lakeland High School

The Old Lakeland High School is located at 400 North Florida Avenue in Lakeland and in 1993 was added to the National Register of Historic Places. Over the years the building has housed several different schools including the Lakeland Junior High School, Polk Opportunity Center and Lakeland Middle Academy (renamed the Lawton Chiles Middle Academy in 1999).