| Election Name: | 1952 United States Senate election in New York |
| Country: | New York |
| Flag Image: | Flag of New York (1909–2020).svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1946 United States Senate election in New York |
| Previous Year: | 1946 |
| Next Election: | 1958 United States Senate election in New York |
| Next Year: | 1958 |
| Election Date: | November 4, 1952 |
| Nominee1: | Irving Ives |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 3,853,934 |
| Percentage1: | 55.21% |
| Nominee2: | John Cashmore |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 2,521,736 |
| Percentage2: | 36.13% |
| Nominee3: | George S. Counts |
| Party3: | Liberal Party (New York) |
| Popular Vote3: | 489,775 |
| Percentage3: | 7.02% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Irving M. Ives |
| Before Party: | Republican Party (US) |
| After Election: | Irving M. Ives |
| After Party: | Republican Party (US) |
The 1952 United States Senate election in New York was held on November 4. Incumbent Republican Senator Irving M. Ives was re-elected to a second term in office over Democrat John Cashmore with a then-record margin of victory.
The Democratic State Convention was held at the Commodore Hotel in Manhattan on August 28.[1] A welcoming speech was delivered by Mayor Vincent Impellitteri. Before the candidates were announced, presidential candidate Adlai Stevenson II addressed the delegates. John Cashmore was nominated on the first ballot. He overcame five avowed candidates, including Manhattan Borough President Robert F. Wagner Jr., who had been the favorite for the seat only weeks before.[1]
Cashmore also rejected a last-minute proposal by party chairman Paul E. Fitzpatrick that he and the other leading candidates would withdraw in an effort to draft W. Averell Harriman into the race. Harriman had recently been an unsuccessful candidate for the Democratic nomination for president and had publicly stated he would not run for Senator. However, Fitzpatrick believed that the Liberal Party, which openly preferred Harriman or Wagner, would refuse to support Cashmore. Cashmore, certain of his chances even without Liberal support, declined.[1]
After it became clear that Cashmore had a majority on the first ballot, Wagner moved to make his nomination unanimous, and county delegations began to switch to him en masse.[1] Before switches, the first ballot stood as follows:
Cashmore had solid support from his native Brooklyn, Queens, the Bronx and the Capital District. Wagner's support came from Manhattan, Long Island, and Buffalo. Cashmore also took twelve crucial votes in Wagner's native Manhattan, delivered to him by renegade West Side leader Robert B. Blaikie. Westchester, which was expected to be solidly for its native son Stanley Church, had not yet voted before it became clear Cashmore would win; the county voted for Cashmore instead, beginning the stampede.[1]
Cashmore made an acceptance speech in which he assailed Senator Ives for playing to the reactionary base of the Republican Party despite his publicly avowed progressivism.[1]
The Liberal met on August 28 and formally nominated Dr. George S. Counts, Professor of Education at Teachers College, Columbia University. Counts's nomination was intended to be temporary, as the Liberal Party usually cross-endorsed the Democratic nominee. However, the nomination of John Cashmore proved untenable for the Liberals, and in early September they chose to stick by Counts as their candidate. The party considered endorsing Senator Ives but decided against such an endorsement due to Ives's vote for the Taft-Hartley Act in 1947.[2] Counts himself chose not to withdraw from the race before the deadline of September 5, after Cashmore rejected a proposal that they both drop out in favor of Averell Harriman.[3]
The Republican incumbent Ives was re-elected with the then-largest margin in state history.