Where Does the Kirwin Surname Come From?

Kirwin is a familiar spelling of the Irish name Kirwan. In origin, the name means “Descendant of Ciardubhán ("dark black")”.

Spelling and variants

Kirwin is listed among the recognised spellings of Kirwan. The same family of names includes Kerwin and O'Kirwan.

The 2010 US Census counted 1,329 people named Kirwin, ranking it number 20,099 among American surnames. That is enough to place it in the top 25,000 American surnames.

Heraldry and the Kirwin name

There is no single Kirwin family crest for every bearer. Herald Lab researches the arms historically associated with the name and explains whose they were.

Want more than a summary? See the Kirwin family name pack.