MallowbyNames

Dermot

DUR-mut · meaning uncertain, possibly derived from Irish "diarmaid" meaning "free from envy"

Peak popularity
1969
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Dermot since 1917

Babies named Dermot per year in U.S. Social Security records.

51116192019602000Most births 1969Boys
Data table (by decade)
DecadeBoys
1910s11
1920s10
1930s0
1940s10
1950s58
1960s105
1970s72
1980s5
1990s39
2000s98
2010s61
2020s13

Meaning & origin

Dermot is a distinctly Irish name with ancient roots but has remained rare in the United States. The first recorded use in U.S. Social Security data was in 1917, and its peak year of usage was 1969, when it saw a modest uptick in births. Since then, its trajectory has been stable but very low, with consistently few births each year. The name never ranked among the top 1000 names nationally, and no state registered it with enough frequency to appear in the top-state data. Dermot carries the weight of Irish history and mythology but has not experienced the revival seen with some other Celtic names. Its rarity may appeal to parents seeking a traditional Irish name that remains uncommon.

Dermot is an anglicized form of the Irish name Diarmaid or Diarmuid. Its etymology is debated, with some sources suggesting it derives from "di" (without) and "airmait" (envy), thus "free from envy." The name has been borne by several early Irish kings and saints, including the 6th-century Saint Diarmuid of Inis Clothrann. It has been used in Ireland for centuries and gained some popularity in the English-speaking world during the 20th century.

Dermot” around the world

Where Dermot lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • Ireland

    3

    babies in 2025

Sources: CSO Ireland (Ireland).

Nicknames & variants

Nicknames: Derry, Dee, Derm

Variants: Diarmaid, Diarmuid, Dermott

Sibling names for Dermot

Names that share Dermot's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

D is for Dermot, our favorite little boy.

D is for Dermot…”

In a Mallowby alphabet book, Dermot's letter becomes Dermot's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Dermot's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Dermot mean?
The meaning of Dermot is uncertain but is often interpreted as "free from envy," derived from the Irish Diarmaid.
How popular is the name Dermot?
Dermot has never ranked in the U.S. top 1000. Its peak usage in the United States was in 1969, with 10 or fewer births per year in recent decades.
Is Dermot a boy's name?
Yes, Dermot is almost exclusively used as a masculine given name.