New York's 40th congressional district

The 40th Congressional District of New York was a congressional district for the United States House of Representatives in New York. It was created in 1913 as a result of the 1910 Census. It was eliminated in 1973 as a result of the 1970 Census. It was last represented by Henry P. Smith III who was redistricted into the 36th District.

1953–1973:

1945–1953:

1913–1945:

The following chart shows historic election results. Bold type indicates victor. Italic type indicates incumbent.