2x CHSAA Class A Intersectional Champions Lacrosse (2015–16, 2016–17) Holy Trinity High School is a co-educational learning environment located centrally in Hicksville, Nassau County, New York on Long Island.

It is operated by the Roman Catholic Diocese of Rockville Centre.

Students study dance and theater (or band) in place of gym and visual arts, with one year of theater arts substituted for choir.

[4] In the early 2000s, Holy Trinity put on the first high school production of Les Misérables in the world.

[5] The athletic camps run for kids in grades 3 or 4 through high school.