| Election Name: | August 1798 United States Senate special election in New York |
| Type: | Presidential |
| Ongoing: | No |
| Country: | New York |
| Previous Election: | January 1798 United States Senate special election in New York |
| Previous Year: | January 1798 |
| Next Election: | April 1800 United States Senate special election in New York |
| Next Year: | April 1800 |
| Image1: | JamesWatsonCongress.jpg |
| Image1 Size: | x150px |
| Nominee1: | James Watson |
| Party1: | Federalist Party (United States) |
| Popular Vote1: | 30 (Senate) 57 (Assembly) |
| Nominee2: | John Tayler |
| Image2 Size: | x150px |
| Party2: | Democratic-Republican Party |
| Popular Vote2: | 9 (Senate) 48 (Assembly) |
| Percentage1: | 69.77% (Senate) 52.78% (Assembly) |
| Percentage2: | 20.93% (Senate) 44.44% (Assembly) |
| Before Election: | William North |
| After Election: | James Watson |
| Before Party: | Federalist |
| Senator | |
| After Party: | Federalist |
| Vote Type: | Leg. |
The second 1798 United States Senate special election in New York was held on August 17, 1798, by the New York State Legislature to elect a U.S. Senator (Class 1) to represent the State of New York in the United States Senate.
Federalist John Sloss Hobart had been elected in January 1798 for the remainder of Philip Schuyler's term (1797–1803) but had resigned on April 16 after his appointment to the United States District Court for the District of New York. Federalist William North was appointed by Governor John Jay to fill the vacancy temporarily, and took his seat on May 21, Congress being in session until July 16, 1798.
At the State election in April 1798, Federalist majorities were elected to both houses of the 22nd New York State Legislature which met from August 9 to 17, 1798; and from January 2 to April 3, 1799, at Albany, New York.
Ex-Speaker James Watson, a State Senator until the previous session, was the candidate of the Federalist Party.
First Judge of the Albany County Court John Tayler was the candidate of the Democratic-Republican Party.
Watson was the choice of both the State Senate and the State Assembly, and was declared elected.
| Office | House | Federalist | Democratic-Republican | ||
|---|---|---|---|---|---|
| U.S. Senator | State Senate (43 members) | James Watson | 30 | John Tayler | 9 |
| State Assembly (108 members) | James Watson | 57 | John Tayler | 48 | |
Watson took his seat on December 11, 1798, but resigned on March 19, 1800, after his appointment as Naval Officer of the Port of New York. The State Legislature held a special election in April 1800, and elected Gouverneur Morris to fill the vacancy.