OHC may stand for: Overhead camshaft Ocean heat content Order of the Holy Cross, a monastic community Outer hair cell, a vertebrate body cell Office for Humanities Communication, co-publisher of Humanist Ontario Housing Corporation Organizational health center, an industrial organization in occupational health psychology Oxford Harmonic Choir Open House Chicago, an annual architecture festival hosted by the Chicago Architecture Foundation See also OHCS, Oregon Housing and Community Services Department POHC, reporting mark for the Pittsburgh and Ohio Central Railroad