The New York Chamber Symphony (NYCS) was an American chamber orchestra based in New York City. It was active from 1977 to 2002.

It was founded in 1977 by its founding music director Gerard Schwarz, and Omus Hirshbein. Its original name was the Y Chamber Symphony, and it was the resident ensemble at the 92nd Street Y, where Hirshbein was director of music programming. The orchestra changed its name to the New York Chamber Symphony in 1986 and in 1996 moved to Lincoln Center's Alice Tully Hall. It also presented, each season, free concerts in Central Park under the sponsorship of the Naumburg Foundation, and conducted several tours.