OWC can refer to: Office Web Components, a type of programmable control in Microsoft Office Open-wheel car, a car with its wheels outside of its main body Oscillating water column, a wave power technology Oil-water contact, the interface between layers of oil and water in hydrocarbon reservoirs "OWC", a song by Kent from the album Isola Other World Computing, a computer hardware company specializing in Apple components Optical wireless communications Overwatch Contenders, a professional esports league