The co-curricular programs at Mater Dei are designed so students can build their social skills and experience success outside the classroom. These activities are run during school hours with some opportunities before or after school.
Students are encouraged to try new activities and make new friends across year levels. Experiencing teamwork firsthand helps students learn this skill in sporting, cultural and outdoor programs.
School and inter-school sports are available. Representative opportunities are available through Darling Downs School Sport and include athletics, basketball, cricket, netball, rugby league, rugby union, softball, touch football and swimming.
The school offers an extensive Instrumental Music Program with close to 30% of the school participating. Instrumental tuition offered includes strings, woodwind, voice, piano and brass. There is also a school choir, which is open to all year levels.
Performance opportunities include performing at community events such as the Carnival of Flowers, school fairs, music concerts and whole school liturgies and assemblies.
Other programs are available in gardening, maker space, service club, school pride, skipping, after school tech club and chess.
Events hosted by the school include the musical, drama festival, art show, music concerts and school fair.