| Song Title | Artist | Genre |
|---|---|---|
| Obedience | Brooklyn Friends | |
| Obelisco | Frankox | |
| Obey | Sharam Jey & The Deadbots | |
| Objet Petit A | Harouki Zombi | |
| Oblivion | M83 | Active Rock/Alternative |
| Oblivious | Aztec Camera | Throwback |
| Obra Maestra | Banda Pequeno Musical | Balada |
| O Children Come | Keith & Kristyn Getty f./Ladysmith Black Mambazo | Top 40 |
| O Christmas Tree | Glee Cast | Holiday |
| O Church Arise (Arise, Shine) | Keith & Kristyn Getty f./Chris Tomlin | Top 40 |
