These clubs/activities are run by O’Dea staff and managed by O’Dea directly. These offerings occur at different times and have specific time/frames and capacity limits. Students can sign-up or apply for these clubs/activities. Descriptions and contact information can be found within attached links below!
| O'Dea Sponsored Clubs | Day | Time | Location | Dates | Cost | Requirements |
| Junior Choir | Tuesdays | 8:15-8:45am | Music Room | All year | Grades K-2 | |
| Choir | Mondays & Thursdays | 3:45-4:45pm | Music Room | All year | Grades 3-5 | |
| Spring Musical | Merges with Choir | 3:45-4:45pm | Gym | TBD | ||
| Student Council | Tuesdays | 3:40-4:40pm | Media Center | First Tuesday of the Month | Grades 4-5 | |
| Battle of the Books | Thursdays | 3:45-4:15pm | Media Center | October-March | None | Grades 3-5 |
| Garden Club | None | |||||
| Lego Robotics Programming Club | Tuesdays & Wednesdays | 3:40-4:40pm or 8-8:45am | Modular 53 | March-May | $25 for 6 weeks | Grade 4 |
| Lego Robotics Challenge | Thursday & Fridays | 3:40-4:40pm | Modular 53 | August-November | $60 for 13 weeks | Grade 5 who have taken the 4th Grade Programming Club |
| Math Olympiad | Thursdays | 8-8:45am | Modular 53 | September - April | None | Grade 5 Advanced Math Students |