Dugan Is An Upbeat Masculine Name Of Irish Origin, Derived From The Surname ÓDúbhagáin, Meaning “black” And “dark-complexioned.” This Ancient Name Recalls When Names Were Coined Based On The Bearer’s Appearance—usually Describing Their Hair, Eyes, Or Skin Tone. Dugan Is A Popular Surname And First Name Used In Ireland To This Day, Making It A Cheerful Tribute If Baby Has Irish Ancestry. Regardless Of Heritage, Dapper Dugan’s Warm Vowels And Sweet Demeanor Will Only Add To Baby’s Adorable Charm.