iMac is a line of Apple Macintosh computers.

IMAC or Imac may also refer to:

• iMac (Intel-based), the Intel line of the iMac
• iMac (Apple silicon), the Apple silicon iMac
• Necmettin Imac (born 1987), Netherlands footballer
• Immobilized metal ion affinity chromatography, a technique to purify proteins
• Independent Medicare Advisory Council, intended to monitor health care in the United States
• Independent Monitoring Association for Child Labor (IMAC), who monitor child labour in the football-making industry under the Atlanta Agreement
• International Miniature Aerobatic Club, a non-profit organization devoted to miniature aircraft in Northern America
• Install-Move-Add-Change, in IT Service Management
• I Marine Amphibious Corps, a former military formation of the United States Marine Corps during the Second World War
• International Movement of the Apostolate of Children, a Catholic organization, also known as MIDADE (Mouvement International d’Apostolat des Enfants) - and related to the Dicastery for the Laity, Family and Life (former Pontifical Council for the Laity) of the Vatican
• Isochronous media access controller, a method of transferring data that must not be interrupted (telecommunications).