In tennis, the 2015 US Open Series (known as Emirates Airline US Open Series for sponsorship reasons) is the twelfth edition of the US Open Series, which includes a group of hard court tournaments that starts on July 27, 2015 in Atlanta and concluded in Winston-Salem for the men and in New Haven for the women on August 30, 2015. This edition consists of three separate men's tournaments and three women's tournaments, with the Western & Southern Open hosting both a men's and women's event. The series is headlined by two ATP World Tour Masters 1000 and two WTA Premier 5 events.