Deegan as a Baby Name. Meaning and Origin of Deegan

What is the meaning of the name Deegan ?

The baby name Deegan is a Male name , 2 syllables long and is pronounced DEE-gən (IPA: /ˈdiːɡən/).

Deegan is Irish in Origin.

Deegan is an Irish surname-turned-given name, anglicized from Gaelic Ó Déagáin, “descendant of Deagán,” a diminutive personal name. The exact sense of Deagán is uncertain; some scholars connect it to the Gaelic element dea-/deagh- meaning “good,” yielding readings like “little good one,” while overlapping surname traditions in Ireland sometimes associate the cluster with Aodh (“fire”), which underlies related names like Keegan and Egan. As a given name, Deegan is typically pronounced DEE-gan.

The surname is well attested across Ireland, particularly in Leinster, and appears in records from the late medieval period onward. In the English-speaking world, Deegan has seen modern first-name use since the late 20th century, paralleling the rise of Irish surnames as forenames. Variant spellings and close cousins include Deagan and Deighan; related names by formation are Egan, Keegan, and Teagan. Feminine use is occasional but growing in contemporary registries.