| Election Name: | 1952 United States Senate election in Maryland |
| Country: | Maryland |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1946 United States Senate election in Maryland |
| Previous Year: | 1946 |
| Next Election: | 1958 United States Senate election in Maryland |
| Next Year: | 1958 |
| Election Date: | November 4, 1952 |
| Image1: | Jamesglennbeall.jpg |
| Nominee1: | James Glenn Beall |
| Party1: | Republican Party (US) |
| Popular Vote1: | 449,823 |
| Percentage1: | 52.54% |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 406,370 |
| Percentage2: | 47.46% |
| Map Size: | 275px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Republican Party (US) |
The 1952 United States Senate election in Maryland was held on November 4, 1952.
Incumbent Democratic Senator Herbert O'Conor chose not to seek re-election for a second term. Republican U.S. Representative James Glenn Beall defeated Democrat George P. Mahoney to win the open seat.
| J. Glenn BeallRepublican | George P. MahoneyDemocratic | Margin | TotalVotes Cast | ||||||
|---|---|---|---|---|---|---|---|---|---|
| % | % | % | |||||||
| Allegany | 20830 | 61.85% | 12531 | 37.21% | 8299 | 24.64% | 33679 | ||
| Anne Arundel | 20359 | 56.38% | 15649 | 43.34% | 4710 | 13.04% | 36110 | ||
| Baltimore (City) | 145827 | 44.45% | 180378 | 54.98% | -34551 | -10.53% | 328102 | ||
| Baltimore (County) | 71543 | 56.26% | 55476 | 43.62% | 16067 | 12.63% | 127166 | ||
| Calvert | 2541 | 51.47% | 2356 | 47.72% | 185 | 3.75% | 4937 | ||
| Caroline | 3696 | 54.86% | 3024 | 44.89% | 672 | 9.97% | 6737 | ||
| Carroll | 10764 | 66.11% | 5474 | 33.62% | 5290 | 32.49% | 16281 | ||
| Cecil | 5700 | 49.00% | 5895 | 50.68% | -195 | -1.68% | 11632 | ||
| Charles | 3757 | 50.15% | 3683 | 49.16% | 74 | 0.99% | 7492 | ||
| Dorchester | 4994 | 50.83% | 4808 | 48.94% | 186 | 1.89% | 9824 | ||
| Frederick | 14981 | 67.67% | 7067 | 31.92% | 7914 | 35.75% | 22138 | ||
| Garrett | 4869 | 68.58% | 2210 | 31.13% | 2659 | 37.45% | 7100 | ||
| Harford | 9064 | 54.31% | 7575 | 45.39% | 1489 | 8.92% | 16690 | ||
| Howard | 4928 | 55.15% | 3981 | 44.56% | 947 | 10.60% | 8935 | ||
| Kent | 3038 | 51.73% | 2752 | 46.86% | 286 | 4.87% | 5873 | ||
| Montgomery | 44293 | 60.51% | 28765 | 39.30% | 15528 | 21.21% | 73194 | ||
| Prince George's | 33103 | 52.91% | 29365 | 46.94% | 3738 | 5.97% | 62562 | ||
| Queen Anne's | 2714 | 43.18% | 3544 | 56.39% | -830 | -13.21% | 6285 | ||
| St. Mary's | 3537 | 45.89% | 4122 | 53.48% | -585 | -7.59% | 7707 | ||
| Somerset | 3803 | 49.45% | 3887 | 50.55% | -84 | -1.09% | 7690 | ||
| Talbot | 4832 | 59.02% | 3326 | 40.63% | 1506 | 18.40% | 8187 | ||
| Washington | 18042 | 60.37% | 11729 | 39.24% | 6313 | 21.12% | 29887 | ||
| Wicomico | 8461 | 59.35% | 5763 | 40.43% | 2698 | 18.93% | 14255 | ||
| Worcester | 4147 | 57.69% | 3010 | 41.87% | 1137 | 15.82% | 7189 | ||
| Total | 449823 | 52.33% | 406370 | 47.27% | 43453 | 5.05% | 859652 | ||