Holy Trinity Catholic High School (Simcoe)

Holy Trinity Catholic High School, colloquially known as HT, is a Roman Catholic high schools in Ontario.

The high school is located in Simcoe, Ontario, Canada. School uniforms are mandatory during school hours, and courses are conducted in a theological manner. Though it is a Roman Catholic school, the student population has Catholic and non-Catholic components. The Super Cities Walk for Multiple Sclerosis held in Simcoe's Holy Trinity Catholic High School raised more than $57,000 in donations for multiple sclerosis.