The 1998 United States Senate election in New York was held November 3, 1998, along with elections to the United States Senate in other states, as well as elections to the United States House of Representatives and various state and local elections. Incumbent Republican Senator Al D'Amato lost his bid for a fourth term to Democrat Chuck Schumer in what was considered by many to be the "high[est] profile and nastiest" contest of the year. This was the first time since 1950 that Democrats won the Class 3 United States Senate seat from New York, and the last time an incumbent U.S. Senator from New York lost a general election. Schumer’s swearing in marked the first time since 1947 that Democrats held both of New York’s U.S. Senate seats.

Alfonse Marcello D'Amato is an American attorney, lobbyist, and politician who served as a United States senator from New York from 1981 to 1999.