PMAC may refer to:
Permanent Magnet AC Motor, a type of electric motor that uses permanent magnets in addition to windings on its field, rather than windings only. PMAC (cryptography), a message authentication code algorithm Pete Maravich Assembly Center, Louisiana State University Provisional Military Administrative Council or Derg, a military junta that ruled Ethiopia 1974—1987 Prevention and Management of Abortion and Its Complications, a Philippine government policy concerning abortion in the Philippines Purchasing Management Association of Canada, a co-sponsor of the Ivey Index "Problem exists between monitor and chair", a term describing computer user error