Holy Trinity School students wear a complete school uniform on the first day of school and every day thereafter. Parents are expected to cooperate with this regulation, as the uniform is a symbol of attendance at Holy Trinity School. All knit shirts, jumpers, kilts, sweaters, shorts, gym sweatshirts/pants, and gym shirts/shorts must be purchased from Flynn O'Hara Uniform Company, as most pieces require a logo imprint.
In Spring, 2017, after consultation with our marketing team, Holy Trinity School committed to a unified school logo - now present on all school uniforms, school communications, website, stationery, etc. For uniforms, there was a two-year grace period for those using past uniforms with a cardinal on the shirt. This period ended in June, 2019 when all uniforms should be the current ones with the new logo.