New York's 4th congressional district is a congressional district for the United States House of Representatives in central and southern Nassau County, represented by Republican Anthony D'Esposito since 2023.

NY-04 is the second-wealthiest congressional district in New York, and among the wealthiest nationally.^[4] As of 2024, this district, alongside California's 22nd, is the most Democratic-leaning congressional district represented by a Republican, with a partisan lean of D+5.^[3] It was also one of 18 districts that would have voted for Joe Biden in the 2020 presidential election had they existed in their current configuration while being won or held by a Republican in 2022.

The district includes the communities of Elmont, Baldwin, Bellmore, East Rockaway, East Meadow, Five Towns, Lynbrook, Floral Park, Franklin Square, Garden City, Garden City Park, Hempstead, Atlantic Beach, Long Beach, Malverne, Freeport, Merrick, Carle Place, New Hyde Park, Oceanside, Rockville Centre, Roosevelt, Seaford, Uniondale, Valley Stream, Wantagh, West Hempstead, and Westbury.

• 1789–1913:

Parts of Manhattan

• 1913–1945:

Parts of Brooklyn

• 1945–1963:

Parts of Queens

• 1963–present:

Parts of Nassau County

In the 1960s, 1970s and 1980s much of this area was in the 5th District. The 4th District then included many towns in eastern Nassau County now in the 3rd District.

In New York electoral politics there are numerous smaller parties at various points on the political spectrum. Certain parties invariably endorse either the Republican or Democratic candidate for every office, hence the state electoral results contain both the party votes, and the final candidate votes (Listed as "Recap").

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• List of United States congressional districts
• New York's congressional districts
• United States congressional delegations from New York