The 2000 United States House of Representatives elections in New York were held on November 7, 2000, to elect the 31 United States representatives from the State of New York, one from each of the state's 31 congressional districts. The elections were held concurrently with other elections in the state for president and vice president, U.S. Senate, state senate, state assembly, state supreme court, ballot proposition one, and various other local offices. Both major parties in the U.S. congressional delegation from New York maintained their overall seat count, though the Republican Party gained a seat from the Democratic party in New York's first district, and the Democratic Party gained a seat from the Republican Party in New York's second district.
The 1st district is based on the eastern end of Long Island, including the Hamptons, Smithtown, Brookhaven, Riverhead, Port Jefferson, and portions of Lake Ronkonkoma, all in Suffolk County. The district has a PVI of R+4 but voted for Al Gore by points in 2000. The incumbent was Democrat Michael Forbes, who was reelected as a Republican with 64.13% of the vote in 1998. Forbes switched parties in June 1999, after disagreements with his party leaders.
Forbes received a primary challenge from Regina Seltzer, a pro bono environmental lawyer and former Brookhaven town council member. On primary day, Seltzer defeated the incumbent Forbes by just 35 votes.