Trinity High School Graduates

"In the proud tradition of
Mercy (1948),
St. Thomas Aquinas (1954),
Rosary (1961),
St. Thomas Aquinas–Mercy (1985)"



Welcome to

Trinity Catholic High School

Trinity Catholic High School is a fully accredited, co-educational, college preparatory high school located in St Louis, Missouri.


Congratulations to Lia Weber, a 2008 Trinity Catholic graduate, and her partner, Al Watson, for being named The Next Great Bakers. The baking and decorationg duo finished first among 10 teams in the The Next Great Baker competion that aired this summer on The Learning Channel. Lia and Al won $100,000 and the opportunity to run "Cake Boss" Buddy Valastro's new bakery in Las Vegas. Everyone at Trinity Catholic is proud of you Lia !!!!



Trinity kitchen help is wanted beginning with the new school year.  If you are interested, please call Margaret at 314-741-6845.


Thursday, August 21, 2014

Freshmen Parent/Student Dinner, 6-8:30pm. WELCOME INCOMING TITANS !!

Friday, August 22, 2014

New Student Orientation, 8:30-2pm. Orientation for Freshmen and new students. Lunch is provided. Dress is casual. No uniform is required.

Monday, August 25, 2014

First day of school (Half day - 8am-12pm). All students attend. Uniforms are required. Be aware of new dress code. Summer reading assignments are due.

Tuesday, August 26, 2014

First full day of school. 8am-2:30pm.

                                School news

Summer Reading Assignments - Learn more


Parent Organization and Booster Club - COME JOIN THE FUN !!


cafeteria monthly menu (HERE)