The story
- Irish · derived fromÓ Buadhachanáin“descendant of Buadhachanán”
- English todayBohannon
Reduced Anglicized form of Irish Ó Buadhachanáin (“descendant of Buadhachanán”), a double diminutive of buadhach (“victorious”).
Etymology from Wiktionary, CC BY-SA 4.0.