OMAC (Buddy Blank) is a superhero comic book created in 1974 by Jack Kirby and published by DC Comics. The character was created towards the end of Kirby's contract with the publisher, following the cancellation of his New Gods series and was reportedly developed strictly due to Kirby needing to fill his contractual quota of 15 pages a week. As envisioned by Kirby, OMAC is essentially Captain America set in the future, an idea Kirby had toyed with some years earlier while at Marvel Comics but had never realized.
OMAC can refer to:
- OMAC (Buddy Blank), a DC Comics superhero
- OMAC (comics): an organization of powerful cyborgs that exist in the DC Universe
:* The OMAC Project, a limited series dealing with the OMACs
:* Michael Costner, the last OMAC cyborg standing, chronicled in the OMAC (2006) miniseries
- Old Man's Aircraft Company, a business aircraft company which made several prototypes of the Laser 300 plane in the late 1980s and early 1990s
- One-key MAC, a construction in cryptography
- Order of Malta Ambulance Corps, an Irish first-aid organisation linked to the Sovereign Military Order of Malta
- OMAC (Industry Organization): Organization for Machine Automation and Control
The OMACs (Omni Mind And Community, originally Observational Metahuman Activity Construct) are a fictional type of powerful cyborg that exist in the DC Comics universe. Based on the Jack Kirby character of the same name, the OMACs were created by Greg Rucka and first appeared in The OMAC Project #1 (June 2005).