Duncan is a sturdy Scottish classic, anglicised from the Old Gaelic Donnchadh, a compound of donn, “brown” or “dark-haired,” and cath, “warrior” or “battle.” The name slipped into the English record through two medieval Kings of Scotland, then won permanent literary billing as the ill-fated ruler in Shakespeare’s Macbeth. Because the bard borrowed rather than invented, the name still carries a faint echo of Highland authority rather than stage-prop tragedy. In modern America Duncan has never been wildly common—its long-term rank hovers between the 400s and 700s—yet it remains reliably familiar, helped along by the coffee-shop sign that turns up on many Main Streets. The sound is brisk and friendly (DUHN-kin or, in most British mouths, DUHN-kən), the image self-possessed: a name that signals quiet strength, a dash of literary pedigree, and just enough everyday recognition to avoid the perennial spelling lesson.
| Duncan D. Hunter - Duncan Hunter is a former Marine and Republican congressman who represented parts of San Diego County from 2009 to 2020 and was the first Iraq War combat veteran elected to Congress. |
| Duncan Lee Hunter is a retired Republican politician who represented California in the US House of Representatives from 1981 to 2009. |
| Duncan II of Scotland - Donnchad mac Máel Coluim was a King of Alba and the son of Malcolm III and his first wife Ingibiorg Finnsdottir. |
| Duncan Laurence is a Dutch singer and songwriter who won Eurovision 2019 with his hit song Arcade, earning the Netherlands its first victory since 1975. |
| Duncan Sheik was an American singer-songwriter best known for his Grammy-nominated hit "Barely Breathing" and for winning two Tony Awards for his music in the Broadway musical Spring Awakening. |
| Duncan Bannatyne is a Scottish entrepreneur and philanthropist best known as a business investor on the BBC show Dragons' Den. |
| Duncan Jones is a BAFTA-winning British filmmaker known for Moon and Source Code and is the son of David Bowie. |
| Duncan I of Scotland - Donnchad mac Crinain ruled Scotland from 1034 to 1040 and inspired King Duncan in Shakespeare's Macbeth. |
| Duncan Mighty is a Nigerian singer and producer from Rivers State who blends many genres and sings mostly in his native Ikwerre language. |
| Duncan J. Watts - Duncan Watts is a University of Pennsylvania professor and former Microsoft Research scientist best known for his pioneering work on small-world networks and for helping found the field of computational social science. |
| Duncan Jones is a former Welsh rugby union prop who played for the Ospreys and the Wales national team. |
| Duncan Hines was an American food critic who rated restaurants for travelers and later lent his name to a food brand that's still popular today. |