(redirected from Onondaga Civic Symphony Orchestra)
OCSOOrange County Sheriff's Office (Florida)
OCSOOntario County Sheriff's Office
OCSOOrdo Cisterciensium Strictioris Observantiae (Latin: Order of Cistercians of the Strict Observance; Catholic religious order)
OCSOOrder of Cistercians of the Strict Observance, Trappists and Trappistines (religious order)
OCSOOff-Campus Student Organization (The College of New Jersey; Ewing, NJ)
OCSOOnondaga Civic Symphony Orchestra (Baldwinsville, NY)