OCF
- Adobe Inc.
- Brundtland Commission
- CJK characters
- Ebook
- Glass wool
- Internet of things
- MP3
- OCF - Ordnance Clothing Factory
- Observable canonical form
- Ocala International Airport
- Ocala, Florida
- Off Center Fed antenna
- Officers' Christian Fellowship
- Open Cluster Framework
- Open Computing Facility
- Open Connectivity Foundation
- Open channel flow
- OpenBSD
- OpenBSD Cryptographic Framework
- Operating cash flow
- Ordinal collapsing function
- Oregon Country Fair
- Original Composite Font
- Orthodox Christian Fellowship
- Our Common Future
- Owens Corning
- Shahjahanpur
- University of California, Berkeley
- Veneta, Oregon