OWC

OWC can refer to:

Office Web Components, a type of programmable control in Microsoft Office
Oil-water contact, the interface between layers of oil and water in hydrocarbon reservoirs
Open-wheel car, a car with its wheels outside of its main body
Open Windrow Composting, composting of waste in open-air windrows
Optical wireless communications
Oscillating water column, a wave power technology
Other World Computing, a computer hardware company specializing in Apple components
Overwatch Contenders, a professional esports league