Trinity Academy Grammar, formerly known as Trinity Academy Sowerby Bridge, is a coeducational secondary school in Sowerby Bridge, Calderdale, West Yorkshire, England.

[1] The school specialises in maths and computing, and is attended by over 1000 students.

[2] Originally the School which became Sowerby Bridge High School, then later Trinity Academy Grammar, existed in conjunction with the Sowerby Bridge Technical Institute in the Town Hall Chambers on Wharf Street in Sowerby Bridge.

[3] In January 1903 it was decided the School should move into the proposed Public Library & Technical Institute on Hollins Mill Lane however this plan did not come to fruition[4] and instead opened as a single storey Carnegie library.

This later became Sowerby Bridge Grammar School.