| Acronym | Definition |
|---|
| OITC➣One in the Chamber |
| OITC➣Office of International Treasury Control (fraudulent organization) |
| OITC➣Ontario Innovation Tax Credit (Ontario, Canada) |
| OITC➣Outdoor-Indoor Transmission Class (acoustics) |
| OITC➣Officer-in-Tactical Command |
| OITC➣Office of Information Technology Communications (Maryland) |
| OITC➣Okinawa ICT (Information and Communication Technology) Tourism Consortium (Japan) |
| OITC➣Ontario International Trade Corporation (Canada) |