ONC may refer to:
Places
Old North Church, Boston, US Old North Church (Sierra Madre, California), US
Science and technology Ocean Networks Canada, a University of Victoria initiative Octanitrocubane, an explosive Oncidium (Onc.), an orchid genus Open Network Computing, a remote procedure call system Operational Navigation Chart, the basis of the Digital Chart of the World Ordinary National Certificate Orthopaedic Nurse Certified
Organizations Office of the National Coordinator for Health Information Technology Oficiul Naţional Cinematografic, an agency in Romanian cinema Olivet Nazarene College or Olivet Nazarene University