The Municipal Art Society of New York (MAS) is a non-profit membership organization for preservation in New York City, which aims to encourage thoughtful planning and urban design and inclusive neighborhoods across the city.
The organization was founded in 1893. In January 2010, MAS relocated from its longtime home in the historic Villard Houses on 457 Madison Avenue to Steinway Hall on West 57th Street (across the street and east of Carnegie Hall). In July 2014, MAS moved into the Look Building at 488 Madison Avenue, across the street from its former Villard home.