Gregg Karukas (born 1956) is a smooth jazz pianist from Bowie, Maryland who first gained notice in Washington, D.C., then moved to Los Angeles in 1982. He backed Melissa Manchester before he co-founded the Rippingtons in 1986. When he was sixteen, he owned one of the first Minimoog synthesizers.
Karukas spent five years with Tim Eyermann in the band East Coast Offering. After moving to Los Angeles, he worked with Shelby Flint, David Benoit, Richard Elliot, Grant Geissman, Dave Koz, Ronnie Laws, and Melissa Manchester. He was a member of the Rippingtons when they recorded their first album, Moonlighting, in November 1985. He has worked as a sideman with Larry Carlton, Jeffrey Osborne, George Duke, Rick Braun, Brenda Russell, Craig Chaquico, Boney James, and Peter White.