WABC (770 kHz), known as "NewsTalkRadio 77," is a radio station in New York City. Owned by the Citadel Broadcasting Corporation, the station broadcasts on a clear channel and is the flagship station of the ABC Radio Network. ABC Radio still owns stock its former stations including WABC, but non voting. WABC shares studio facilities with sister station WPLJ (95.5 FM) and former sister stations WEPN (1050 AM), and WQEW (1560 AM) in midtown Manhattan, and its transmitter is located in Lodi, New Jersey.

Since 1982 WABC has programmed a talk radio format, and has been one of the most successful talk stations locally and in the United States. WABC is, or has been, the flagship station for nationally known talk-radio hosts Rush Limbaugh, Sean Hannity, Mark Levin, Laura Ingraham, John Batchelor and Don Imus. The station also carries reports from ABC News. Before 1982, WABC broadcast a Top 40 music format, was the dominant music station in the New York City area, and served as a template for many other Top 40 stations in different cities.

WABC and WPLJ were included in the sale of several ABC radio stations and the ABC Radio Network by the Walt Disney Company to Citadel, announced in February 2006 and finalized on June 12, 2007.