Teagan

From an Irish surname, an Anglicized form of Ó Tadhgáin meaning "descendant of Tadhgán". The given name Tadhgán is a diminutive of TADHG.

TADHG   male   Irish, Scottish
Means "poet" in Irish. This was the name of an 11th-century king of Connacht.
FEMININE FORMS
ENGLISH: Taegan
OTHER FORMS
IRISH: Tadg, Tadhg, Tadhgán, Teague, Teige, Teigue, Tighe
SCOTTISH: Tadg, Tadhg