Townsville Grammar School is an independent, co-educational, day, International Baccalaureate and boarding school, located in Townsville. Established in 1888, it is the northernmost member of the Queensland grammar schools. From its foundation the school encouraged a co-educational environment, but in its early decades the number of female students was particularly small; in its foundation year (1888), "20 boys" are recorded as being enrolled. During World War II the school was acquired by the Royal Australian Air Force for use as barracks accommodation for the No. 3 Fighter Sector RAAF.

School badge

The School Badge was designed in 1902 by a Sydney architect. The background represents the Southern Cross, with the Three Turrets set on the Rock of Christianity, surrounded by the sea of Plenty. The central turret symbolises spiritual values, while the two side turrets represent intellectual and sporting values. The Latin text on the badge reads "Bonus intra melior exi", literally "Come in good, go out better".

Headmasters

P. F. Rowland is as of 2018 the longest serving headmaster, holding his position for 34 years. During his time,"Boss" Rowland taught the School's two Rhodes Scholars, Chester Parker and George Hall.

Campuses

North Shore

The Junior School North Shore campus teaches from pre-kindy (for children turning 3 before 30 June). This campus opened in 2015, and continues to grow.

Annandale

The Junior School Annandale campus teaches from pre-preparatory (for children turning 4 before 30 June) to grade 6. This campus opened in 1997.

North Ward

The North Ward campus is situated in the seaside suburb of North Ward in Townsville. It comprises the Middle School (grades 7-9) and Senior School (grades 10-12). The School House building is now heritage-listed.

Sporting houses

The four sporting houses are named after former headmasters:

Notable alumni

Notable staff