OCF

OCF may refer to:


 * Ocala International Airport, in Ocala, Florida
 * Off Center Fed antenna, a dipole antenna with specific placement of feedpoint allowing multiple resonances in HF band
 * Officers' Christian Fellowship, a nonprofit Christian parachurch organization which serves the U.S. Military
 * Open channel flow, Flow of a fluid with its surface exposed to the atmosphere
 * Open Cluster Framework, a clustering standard in computing
 * Open Computing Facility, at University of California, Berkeley
 * Open Connectivity Foundation, the biggest industrial connectivity standard organization for IoT.
 * Open Container Format (also OEBPS Container Format) in the specification for E-Books in the ePUB format.
 * OpenBSD Cryptographic Framework, an OpenBSD initiative to provide operating system support for cryptographic acceleration hardware.
 * Operating cash flow, a term in financial accounting
 * Optimum Coding in the Frequency Domain
 * Ordinal collapsing function, a process used for reaching large ordinals in the field of set theory
 * Ordnance Clothing Factory, Avadi, Shahjahanpur, India
 * Oregon Country Fair, an annual event in Veneta, Oregon
 * Original Composite Font, an early CJK font format by Adobe Systems
 * Orthodox Christian Fellowship, a North American Orthodox campus ministry
 * Our Common Future, a 1987 report from the United Nations World Commission on Environment and Development (WCED)
 * Owens Corning Fiberglass, a manufacturer of fiberglass insulation
 * Observable canonical form