McGowan — Irish Surname Origin & Meaning
Irish form: Mac Gabhann
Meaning: “son of the smith”
Traditional stronghold: Sligo, Cavan
Often anglicised to Smith — most Cavan Smiths were originally Mac Gabhann.
Related names from the same part of Ireland: Brady · O'Reilly · Smith · Clarke · Boland · Higgins · Feeney · McCabe