| Election Name: | 1988 United States Senate election in Delaware |
| Country: | Delaware |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1982 United States Senate election in Delaware |
| Previous Year: | 1982 |
| Next Election: | 1994 United States Senate election in Delaware |
| Next Year: | 1994 |
| Election Date: | November 8, 1988 |
| Image1: | File:Bill Roth (croppedmore).png |
| Nominee1: | Bill Roth |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 151,115 |
| Percentage1: | 62.06% |
| Nominee2: | Shien Biau Woo |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 92,378 |
| Percentage2: | 37.94% |
| Map Size: | 210px |
| U.S. Senator | |
| Before Election: | William V. Roth |
| Before Party: | Republican Party (United States) |
| After Election: | William V. Roth |
| After Party: | Republican Party (United States) |
The 1988 United States Senate election in Delaware was held on November 8, 1988. Incumbent Republican U.S. Senator William Roth won re-election to a fourth term.