Quiz Bowl is an annual competition sponsored by the Diocese of Baton Rouge, held in the spring. Students compete to answer questions based on general knowledge in all academic subject areas, including religion and also current events.
St. Theresa Middle has a 5th–6th grade quiz bowl team and a 7th–8th grade quiz bowl team. The teams work with faculty coaches throughout the school year, to practice and prepare for the competition. Only six students are selected for each team, with only four students on the competition team at any one time. Students compete as a team, discussing and solving questions with teammates in ten-second time limits. The members of each team are chosen based on test results, teacher nomination, and current events knowledge.