Bi-annually, St. Mary's Academy stages a dramatic arts production. Students in all grades can participate in the following ways:
- Acting
- Sound and Lighting
- Publicity
- Stage Management
- Make-up artistry
- Band
- Sets and Props
- Costumes
- Souvenirs
SMA's school performances consistently play before sold-out houses. Recent productions include:
| 2024 (Fall) | Roald Dahl's Matilda the Musical |
| 2023 (Spring) | Disney's Beauty and the Beast |
| 2019 | The Sound of Music |
| 2018 | Roald Dahl's Willy Wonka |
| 2017 | Rodgers and Hammerstein's Cinderella |
| 2016 | You're a Good Man, Charlie Brown |
| 2015 | Annie |
| 2014 | Shrek The Musical |
| 2013 (Fall) | Grease |
| 2013 (April) | Anne of Green Gables |
| 2011 | Wizard of Oz (combined jr & sr production) |
| 2010(December) | Little Shop of Horrors |