| Election Name: | 1952 United States Senate election in Delaware |
| Country: | Delaware |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1946 United States Senate election in Delaware |
| Previous Year: | 1946 |
| Next Election: | 1958 United States Senate election in Delaware |
| Next Year: | 1958 |
| Election Date: | November 4, 1952 |
| Image1: | JohnJWilliams.jpg |
| Nominee1: | John J. Williams |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 93,020 |
| Percentage1: | 54.49% |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 77,685 |
| Percentage2: | 45.51% |
| U.S. Senator | |
| Map Size: | 210px |
| Before Party: | Republican Party (US) |
| After Party: | Republican Party (US) |
The 1952 United States Senate election in Delaware took place on November 4, 1952. Incumbent Republican U.S. Senator John J. Williams was re-elected to a second term in office over Democratic Lieutenant Governor Alexis I. du Pont Bayard, the son of former Senator Thomas F. Bayard, Jr. and descendant of two of Delaware's most powerful families, the du Ponts and the Bayards.