Objects Components Framework 
Onboard Computational Facility 
Open Computing Facility 
Operating Cash Flow 
Orbiter Computational Facilities 
Out of Control Flight 
Object Components Framework 
Offsite Computer Facility 
Open Clustering Framework 
Operational Control Field 
Oxygen Cold Flow 
IATA code for Ocala International Airp… 
Object Component Framework 
Observatoire de la Chirurgie Française 
Obsessive-Compulsive Foundation 
occipital-frontal circumference 
Office of Capital Facilities 
On-board Computational Facility 
Online Charging Function 
Ontario Cancer Foundation 
Open Channel Flowmeter 
Open Communication Facility 
OpenCard Framework 
Operations and Checkout Facility 
Operations Control Facility 
Orientation Coherence Function 
Orientation Correlation Function 
Orthodox Christian Fellowship 
Osteopathy in the Cranial Field 
Oxygen-Coal-Flux