The 2015 New York City Marathon was the 45th running of the annual marathon race in New York City, United States, which took place on November 1. The event was organised by the New York Road Runners and sponsored by Tata Consultancy Services (TCS). The main race saw the third successive time that Kenyans won both races. Stanley Biwott won the men's division with a time of 2:10:34. His compatriot Mary Jepkosgei Keitany claimed the women's division with a time of 2:24:25, her second consecutive win in New York. In the wheelchair divisions, South African Ernst van Dyk won the men's division with a time of 1:30:54 and American Tatyana McFadden won the women's division with a new record of 1:43:04.

Stanley Kipleting Biwott is a Kenyan long-distance runner who competes in half marathon and marathon races. He won the 2012 Paris Marathon in a course record time of 2:05:11 hours and the 2015 New York City Marathon. His half marathon best is 58:56 minutes.