Merrimac State High School is a public high school in Mermaid Waters (Queensland, Australia). The school falls within Division 12 of Gold Coast council.
The motto of the school is "Pride in Excellence", which is featured on the school's crest.
As of 2025, the school has a teaching staff of 84 (Full-time equivalent: 79.7) and a non-teaching staff of 51 (Full-time equivalent of 41.8).
In 1979, the first principal of the school was Brian Hallewell. As of 2026, the current principal is Rachel Cutajar. Recent principals have included:
In 2015, Anna Bligh's state-wide "Flying Start" program was officially implemented to align Queensland with the other states by transferring year 7 into the high school system, meaning that in 2015 Merrimac State High School started catering for years 7 – 12.
In 2023, Merrimac State High School was reported to have a maximum student enrolment capacity of 1,492 students.
The trend in school enrolments (August figures) has been:-
The school's four sports houses dervied the name from various Australian native animals and the translation of the names of those animals into the local indigenous language.