| Election Name: | 1988 United States Senate election in Maryland |
| Country: | Maryland |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1982 United States Senate election in Maryland |
| Previous Year: | 1982 |
| Next Election: | 1994 United States Senate election in Maryland |
| Next Year: | 1994 |
| Election Date: | November 8, 1988 |
| Image1: | File:Paul Sarbanes, official color photo.jpg |
| Nominee1: | Paul Sarbanes |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 999,166 |
| Percentage1: | 61.79% |
| Nominee2: | Alan Keyes |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 617,537 |
| Percentage2: | 38.19% |
| Map Size: | 295px |
| U.S. Senator | |
| Before Election: | Paul Sarbanes |
| Before Party: | Democratic Party (United States) |
| After Election: | Paul Sarbanes |
| After Party: | Democratic Party (United States) |
The 1988 United States Senate Election in Maryland was held on November 8, 1988. Incumbent Democratic U.S. Senator Paul Sarbanes was reelected to a third term in a landslide. As in 1982, Sarbanes won strongly Republican Garrett County, which has never supported a Democratic presidential candidate and has not voted Democratic in a Senate election since this election. This is the last time that Maryland voted for a Senate candidate and a presidential candidate of different political parties.
| Paul S. SarbanesDemocratic | Alan KeyesRepublican | Rashaad AliIndependent | Imad A. AhmadIndependent | Margin | TotalVotes Cast | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | % | % | % | % | |||||||||||||
| Allegany | 14991 | 59.38% | 10254 | 40.62% | 0 | 0.00% | 0 | 0.00% | 4737 | 18.76% | 25245 | ||||||
| Anne Arundel | 77647 | 54.41% | 65053 | 45.58% | 2 | 0.00% | 7 | 0.00% | 12594 | 8.82% | 142709 | ||||||
| Baltimore (City) | 175059 | 79.82% | 44231 | 20.17% | 6 | 0.00% | 22 | 0.01% | 130828 | 59.65% | 219318 | ||||||
| Baltimore (County) | 157701 | 58.63% | 111251 | 41.36% | 1 | 0.00% | 15 | 0.01% | 46450 | 17.27% | 268968 | ||||||
| Calvert | 7915 | 50.08% | 7890 | 49.92% | 0 | 0.00% | 0 | 0.00% | 25 | 0.16% | 15805 | ||||||
| Caroline | 3543 | 55.50% | 2841 | 44.50% | 0 | 0.00% | 0 | 0.00% | 702 | 11.00% | 6384 | ||||||
| Carroll | 19305 | 46.12% | 22551 | 53.87% | 1 | 0.00% | 3 | 0.01% | -3246 | -7.75% | 41860 | ||||||
| Cecil | 10607 | 56.92% | 8022 | 43.05% | 0 | 0.00% | 7 | 0.04% | 2585 | 13.87% | 18636 | ||||||
| Charles | 16238 | 56.35% | 12580 | 43.65% | 0 | 0.00% | 0 | 0.00% | 3658 | 12.69% | 28818 | ||||||
| Dorchester | 4979 | 56.20% | 3881 | 43.80% | 0 | 0.00% | 0 | 0.00% | 1098 | 12.39% | 8860 | ||||||
| Frederick | 23997 | 49.55% | 24423 | 50.43% | 0 | 0.00% | 10 | 0.02% | -426 | -0.88% | 48430 | ||||||
| Garrett | 3882 | 51.41% | 3669 | 48.59% | 0 | 0.00% | 0 | 0.00% | 213 | 2.82% | 7551 | ||||||
| Harford | 33192 | 54.25% | 27992 | 45.75% | 0 | 0.00% | 4 | 0.01% | 5200 | 8.50% | 61188 | ||||||
| Howard | 43521 | 54.30% | 36602 | 45.67% | 2 | 0.00% | 18 | 0.02 | 6919 | 8.63% | 80143 | ||||||
| Kent | 3488 | 59.76% | 2349 | 40.24% | 0 | 0.00% | 0 | 0.00% | 1139 | 19.51% | 5837 | ||||||
| Montgomery | 198484 | 62.45% | 119155 | 37.49% | 0 | 0.00% | 206 | 0.06% | 79329 | 24.96% | 317845 | ||||||
| Prince George's | 143485 | 69.65% | 62476 | 30.33% | 1 | 0.00% | 56 | 0.03% | 81009 | 39.32% | 206018 | ||||||
| Queen Anne's | 5636 | 53.01% | 4996 | 46.99% | 0 | 0.00% | 0 | 0.00% | 640 | 6.02% | 10632 | ||||||
| St. Mary's | 10478 | 58.98% | 7285 | 41.01% | 0 | 0.00% | 1 | 0.01% | 3193 | 17.97% | 17764 | ||||||
| Somerset | 3200 | 52.08% | 2944 | 47.92% | 0 | 0.00% | 0 | 0.00% | 256 | 4.17% | 6144 | ||||||
| Talbot | 5523 | 50.40% | 5435 | 49.60% | 0 | 0.00% | 0 | 0.00% | 88 | 0.80% | 10958 | ||||||
| Washington | 17513 | 49.77% | 17674 | 50.23% | 0 | 0.00% | 0 | 0.00% | -161 | -0.46% | 35187 | ||||||
| Wicomico | 12468 | 52.22% | 11406 | 47.78% | 0 | 0.00% | 0 | 0.00% | 1062 | 4.45% | 23874 | ||||||
| Worcester | 6314 | 53.10% | 5577 | 46.90% | 0 | 0.00% | 0 | 0.00% | 737 | 6.20% | 11891 | ||||||
| Total | 999166 | 61.67% | 620537 | 38.30% | 13 | 0.00% | 349 | 0.02% | 378629 | 23.37% | 1620065 | ||||||