Dugan is an Irish surname and given name, derived from the Gaelic 'Dubhán,' which means 'little dark one.' It was traditionally a surname but has become more popular as a first name in recent years. Dugan is often associated with Irish heritage and culture.
"Despite fluctuations over time, the name Dugan has shown steady popularity with a cumulative total of 513 births from 1914 to 2020."