Steve Addabbo is an American record producer, songwriter and audio engineer, who helped launch[1] the careers of Suzanne Vega and Shawn Colvin.

He had a vital hand in Vega's hit single, "Luka"[2] and Colvin's album Steady On.

[2] He has produced and/or engineered for artists[3] including Bobby McFerrin, Bob Dylan, Eric Andersen, Loudon Wainwright III, Jeff Buckley, Gary Lucas, Lara Bello, Richard Barone, The Bongos, Robby Romero and Red Thunder, Richard Shindell, Suzanne Vega, Ana Egge and The Stray Birds, Chiara Civello, Jane Olivor, Olivia Newton-John, The Manhattans and Dar Williams.

Recent projects include Richard Barone's Sorrows and Promises: Greenwich Village in the 60s and the Robby Romero track "Born on the REZ" recorded with Dennis Banks, Robert Mirabal and Kris Kristoffersen honoring the Standing Rock Movement.

In the late 1980s, Addabbo learned that Celestial Sound was up for sale, and he and Ron Fierstein purchased the studio's equipment and used it to set up a recording studio in the basement of Addabbo's house in Shelter Island, New York, appropriately naming the studio Shelter Island Sound, and eventually moving it out of the house and into a more centralized location on 21st Street in New York City.