Save Gender Masculine Usage Old Irish [1] Meaning & HistoryExpand Links Old Irish form of Tadhgán. Related NamesFamily Tree·Details Other Languages & CulturesTadhg, Teague, Tighe, Tadgh, Tadhgán, Teige, Teigue(Irish) Tadg, Tadhg(Irish Mythology) Sources & References O'Brien, Kathleen M. Index of Names in Irish Annals, available from https://medievalscotland.org/kmo/AnnalsIndex/Masculine/Tadgan.shtml.