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.

Click here to view a message from our Archbishop

Please continue to pray for peace in our community.
Sincerely Yours in Christ,
Most Rev. Robert J. Carlson - Archbishop of St. Louis

                              SCHOOL  Calendar

Thursday, March 26

Girls Soccer at HOME vs. McCluer North

JV @ 4:15pm / Varsity @ 6:15pm

Golf at HOME vs. Duchesne

Friday through Sunday - March 27, 28, 29th

SHREK the Musical presented by the Titan Alumni Players

Click " HERE " for ticket information!

Saturday, March 28

Varsity Baseball at HOME vs. Cardinal Ritter @11:00am

Tuesday, March 31

Junior Ring/Recognition Mass at Our Lady of the Rosary Church (11725 Bellefontaine Road) at 7:00 pm.  Invitations have been mailed.
In addition, the will be NO CLASSES for Juniors on WEDNESDAY, APRIL 1.

Saturday, April 18

Spring Trivia Night Flyer: April 18, 2015

Wednesday, April 22 - SCHEDULE CHANGE

Late start for students has been CANCELLED.  This will be a regular school day beginning at 8:00am and ending at 2:30pm.

Friday, April 24


                                School news


Trinity Catholic students compete in Chemistry contest

 A pair of teams from Trinity Catholic High School competed in the Battle of Burets Chemistry contest February 26 at Southern Illinois University-Edwardsville. Senior Alan Scheibel (St. Angela Merici) and junior Xavien Walker (Hazelwood West Middle) finished 10th out of 17 teams from and juniors Nicole Jedding (St. Rose Philippine Duchesne) and Yen Quach (St. Norbert)would up sixth out of 17 teams. Each team had to perform a chemistry experiment within a designated time limit.


Trinity Catholic duo shines in Engineering competition

Trinity Catholic seniors Chris Payeur (Sacred Heart) and Jacob Klump (Christ Light of the Nations) placed second out of 25 teams at the Truss Bridge Civil Engineering competition held February 28 at St. Louis University. The pair’s model bridge supported more weight before failure than any other team in the competition, however Payeur and Klump missed first place narrowly because of the final efficiency calculations. Also competing for Trinity Catholic were juniors Sam Araujo (St. Norbert) and Michael Schaller (Christ Light of the Nations); juniorsNick Noonan (Sacred Heart) and Ben Sanfilippo (St. Angela Merici); junior Matt Quick (Christ Light of the Nations) and senior Nick Wuelling (St. Rose Philippine Duchesne); seniors John Hilmes (St. Ferdinand) and Matt O’Donnell (St. Rose Philippine Duchesne); juniors Devin Collins (St. Norbert) and Nick Wallace (St. Rose Philippine Duchesne) and juniors Jackson Compas (Christ Light of the Nations) and Grant Fisher (Christ Light of the Nations.


Trinity Catholic WYSE teams moves to state finals

In the Sectional round of the Worldwide Youth in Science & Engineering (WYSE) state tournament March 6 the Trinity Catholic team finished second in the Small School Division. The runner-up finish pushed the Titans into championship round April 15 at Missouri University of Science & Technology in Rolla. Trinity Catholic finished behind Notre Dame and in front of Linn, Mo in the team rankings. Individual standouts for the Titans were seniors John Hilmes from St. Ferdinand(third in English and second in Physics), Alan Scheibel from St. Angela Merici(first in Physics and first in Chemistry), Dan Jedding from St. Rose Philippine Duchesne (third in Chemistry), Nick Wuelling from St. Rose Philippine Duchesne (third in physics), and Matt O’Donnell from St. Rose Philippine Duchesne (first in Graphics); junior Nicole Jedding from St. Rose Philippine Duchesne (second in Math) and freshmen Kyra Walsh from St. Angela Merici(second in Computer) and Greg Hilmes from St. Ferdinand(first in Computer Science). 

Trinity Catholic High School is excited to announce it’s participation in the Give STL Day Tuesday, May 5, 2015.

Trinity Catholic, along with hundreds of non-profit agencies from around the St. Louis area, is partnering with the Greater St. Louis Community Foundation and taking part in the 24-hour, on-line giving day. Each of the non-profits that participate will be asking its constituents to make an on-line gift (a minimum of $10) that day. All of the gifts are made on-line at GiveSTLDay.org and all of the money raised by Trinity Catholic faculty and staff, alums, parents, friends and other benefactors will be given back to the school. So MARK YOUR CALENDAR NOW for Tuesday, May 5 and plan to be a part of a great day of giving that will benefit Trinity Catholic High School. We will keep you posted on the exciting plans as May 5 gets closer. BE A PART OF GIVING STL DAY AND HELP TRINITY CATHOLIC AT THE SAME TIME. 


SAVE THE DATE: Food Trucks at Trinity! - May 6th, 5:00-8:00pm! click "HERE"

Alumni Golf Challenge Saturday, May 30th, 2015 at Belk Park Golf Course - Wood River, Illinois

Sign up soon, only 36 teams will be accepted!

Click " HERE" for more information!

Congratulations to the latest Ren Top 10 honorees!!!

The Trinity Catholic High School faculty and staff have recognized 10 more students based on their dedication, attitude and service to the school community. Each quarter the Renaissance organization asks each academic department area to select one student who exemplifies character traits including respect, graciousness, joyfulness, trust, dedication and compassion. The students selected this quarter are seniors Richard Hanks (Ferguson Middle School), Shannon Kettmann (St. Norbet), Sasha Harris (Christ Light of the Nations), Matt O’Donnell (St. Rose) and Spencer Haynes (North County Christian), junior Angela Colonna (St. Rose), sophomoreHaley Rowberry (Sacred Heart) and freshmen Isaiah Dockett (Salem Lutheran), Greg Hilmes(St. Ferdinand) and Tim Shackelford, Jr. (Christ Light of the Nations).


Alums, parents, faculty, staff, and other friends of Trinity Catholic enjoy an evening out and raise much-needed funds.  There is something for everyone including dinner, drinks, silent auction items and a live auction portion of the evening.  Please monitor this website for more details as the date approaches or e-mail Dan Grumich at dgrumich@trinitycatholichigh.org of you would like to be put on the invitation mailing list.


The Martin Luther King, Jr. Model of Justice Award is an annual award presented to high school students who have demonstrated, through their attitude and work, a commitment to service humanity in the broader community.  These students have made social justice a central part of their life and have committed themselves “to the noble struggle for equal rights.”


This year two Trinity students have received this award. Sophomore Shayla Wilson was nominated through her parish, Holy Name of Jesus and senior Shannon Kettmann was nominated through Trinity Catholic High School.  Both Shayla and Shannon will be honored as a part of the 39th Annual Archdiocesan Mass and Commemoration at the Cathedral Basilica on January 18.



Congratulations to senior Kenyatta Turner on winning 1st prize in the North County Churches Uniting for Racial Harmony and Justice Oratorical Contest: “Mobilizing Community Action - All Hands In.”  Kenyatta will present her speech on Sunday, January 18 at the St. Louis Community College at Florissant Valley.

Kenyatta, you make us proud!

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


cafeteria monthly menu (HERE)