Dempsey is an Irish transplant, anglicised from Ó Díomasaigh—literally “descendant of the proud one”—whose roots lie in the midlands counties of Laois and Offaly. First a surname, it crossed the Atlantic with nineteenth-century emigrants and, true to its prize-fighting namesake Jack Dempsey, has stayed on its feet in American birth records for well over a century, hovering around the lower half of the Top 1,000 yet rarely slipping out of sight. Today it is comfortably unisex, its crisp DEM-see pronunciation and silent “p” giving it a brisk, modern edge while sidestepping overt gender signals. Pop-culture adds range: the boxer lends steel, actor Patrick Dempsey supplies silver-screen polish, and the occasional fictional detective keeps the name in a trench-coat of intrigue. Parents drawn to Irish heritage, understated confidence, and a track record of quiet endurance may find Dempsey strikes a neat balance—distinctive enough to raise an eyebrow, familiar enough to save the spelling lessons.
| Dempsey Bob is a Canadian woodcarver and sculptor from British Columbia with Tahltan and Tlingit First Nations heritage. |
| Dempsey Travis was a real estate entrepreneur, civil rights activist, and author known for his writings on African American history and culture. |
| Dempsey Hovland was a sports promoter and team owner who founded the 20th Century Booking Agency and co-owned the Miss American Teenager pageant. |
| Dempsey Burgess was a North Carolina congressman and militia commander during the American Revolution. |
| Dempsey Cothrien Wilson was an American race car driver. |
| Dempsey James Barron was an American attorney, businessman, rancher, and politician who served as president of the Florida Senate. |