| Election Name: | 1990 United States Senate election in Kansas |
| Country: | Kansas |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1984 United States Senate election in Kansas |
| Previous Year: | 1984 |
| Next Election: | 1996 United States Senate election in Kansas |
| Next Year: | 1996 |
| Election Date: | November 6, 1990 |
| Image1: | File:LandonNancy.jpg |
| Nominee1: | Nancy Kassebaum |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 578,605 |
| Percentage1: | 73.60% |
| Nominee2: | Dick Williams |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 207,491 |
| Percentage2: | 26.40% |
| Map Size: | 270px |
| U.S. Senator | |
| Before Election: | Nancy Kassebaum |
| Before Party: | Republican Party (United States) |
| After Election: | Nancy Kassebaum |
| After Party: | Republican Party (United States) |
The 1990 United States Senate election in Kansas was held November 6, 1990. Incumbent Republican U.S. Senator Nancy Kassebaum was re-elected for a third full term.