| Election Name: | 1936 United States Senate election in New Hampshire |
| Country: | New Hampshire |
| Flag Year: | 1931 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1930 United States Senate election in New Hampshire |
| Previous Year: | 1930 |
| Next Election: | 1942 United States Senate election in New Hampshire |
| Next Year: | 1942 |
| Election Date: | November 3, 1936 |
| Image1: | File:Styles Bridges (1939).jpg |
| Nominee1: | Styles Bridges |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 107,923 |
| Percentage1: | 51.86% |
| Nominee2: | William N. Rogers |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 99,195 |
| Percentage2: | 47.67% |
| Map Size: | 245px |
| U.S. Senator | |
| Before Election: | Henry W. Keyes |
| Before Party: | Republican Party (United States) |
| After Election: | Styles Bridges |
| After Party: | Republican Party (United States) |
The 1936 United States Senate election in New Hampshire took place on November 3, 1936. Incumbent Republican Senator Henry W. Keyes did not run for re-election.
Governor of New Hampshire Styles Bridges won the open election to succeed him, defeating former Senator George H. Moses in the Republican primary and Democratic U.S. Representative William N. Rogers in the general election. Bridges would win four more elections to the seat; this election was the closest of his career.
Primary elections were held on September 15, 1936.