Gladstone State High School is a coeducational public secondary school based in West Gladstone, a suburb of Gladstone in the Gladstone Region in Queensland, Australia.

The school has a total enrolment of more than 1500 students per year, with an official count of 1552 students in August 2020.

[1] Gladstone State High School consists of over 125 staff members, including the School Principal, Garry Goltz, as well as five Deputy Principals, two Heads of School, thirteen Heads of Department, six Year Level Coordinators and three Guidance Officers.

[2] Gladstone State High School includes the following four sporting houses with their respective colours:[3]

Inter-house competitions: Inter-school competitions: District (Port Curtis), Regional (Capricornia), State and Australian competitions: Sport representatives at School and State Levels for students with disabilities (AWD):