OOTC
| Acronym | Definition |
|---|---|
| OOTC | Obligatory on Topic Comment |
| OOTC | Old Old Timers Club (est. 1947) |
| OOTC | Obligatory On Topic Comment (originally used on FIDOnet) |
| OOTC | Out of the Cold (Toronto, Canada volunteer group) |
| OOTC | Out of the Closet |
| OOTC | Out of the Country |
| OOTC | Office of the Chairman |
| OOTC | Orc of the Covenant (gaming guild) |
| OOTC | Order of the Claw (World of Warcraft gaming guild) |