TMAC, T-MAC or tMAC may refer to:
Trimellitic anhydride chloride, a chemical compound Testis-specific meiotic arrest complex, a protein complex in Drosophila TeraMAC, a unit of 1012 multiply–accumulate operations (MAC)
People Tony MacAlpine (1960), American musician Terry McAuliffe (1957), former Governor of Virginia Tom McCarthy (sportscaster) (born 1968), American sports announcer Tracy McGrady (born 1979), American basketball player Tetairoa McMillan (born 2003), American football player tobyMac (born 1964), American musician Tom MacDonald (rapper) (born 1988), Canadian musician
See also T-Mac (disambiguation)