| Election Name: | 1942 United States Senate election in Kentucky |
| Country: | Kentucky |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1940 United States Senate special election in Kentucky |
| Previous Year: | 1940 (special) |
| Next Election: | 1946 United States Senate special election in Kentucky |
| Next Year: | 1946 (special) |
| Election Date: | November 3, 1942 |
| Nominee1: | Happy Chandler |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 216,958 |
| Percentage1: | 55.34% |
| Nominee2: | Richard J. Colbert |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 175,081 |
| Percentage2: | 44.66% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Happy Chandler |
| Before Party: | Democratic Party (United States) |
| After Election: | Happy Chandler |
| After Party: | Democratic Party (United States) |
The 1942 United States Senate election in Kentucky took place on November 3, 1942. Incumbent Democratic Senator Happy Chandler was re-elected to a full term in office over Republican Richard J. Colbert.