WNBM (103.9 FM) is a radio station licensed to Bronxville, New York, USA, a suburb of New York City. Branded on-air as Radio 103.9, the station features an urban adult contemporary format and is owned by Atlanta-based Cumulus Media. WNBM shares studios with sister stations WABC (770 AM), WNSH (94.7 FM) and WPLJ (95.5 FM) above Pennsylvania Station in Midtown Manhattan, and its transmitter is based on the campus of Montefiore Medical Center in the Bronx, New York City's northernmost borough.