Bishop Gallagher High School

Trinity Catholic High School
Location
Harper Woods, Michigan
Information
Type	Private, Co-educational
Established	2002
Closed	2005
Grades	9–12
Enrollment	163 (in 2005)
Color(s)	Blue and Gold
Athletics conference	Detroit Catholic High School League
Nickname	Lancers
Accreditation	Michigan Association of Non-Public Schools

Trinity Catholic High School was a coeducational Roman Catholic high school in Harper Woods, Michigan and was part of the Roman Catholic Archdiocese of Detroit.

The school formed in the Fall of 2002 when St. Florian High School in Hamtramck, Michigan and Bishop Gallagher High School in Harper Woods, Michigan merged.

The school had 163 students enrolled at the time of its closing in 2005.