New York's 31st State Assembly district is one of the 150 districts in the New York State Assembly in the United States.

It has been represented by Democrat Khaleel Anderson since 2021.

District 31 is located in Queens, comprising the neighborhoods of Far Rockaway, Arvrene, Springfield Gardens, Brookville, and parts of South Ozone Park.

All of John F. Kennedy International Airport is within this district.

The district is entirely within New York's 5th congressional district, and overlaps the 10th and 15th districts of the New York State Senate, and the 28th, 31st and 32nd districts of the New York City Council.