Duffy is a surname of Irish origin that comes from the original Irish name Ó Dubhthaigh, meaning descendant of Dubthach. Dubthach was an Old Irish first name meaning "black".

Variations include: Duffey, Duffee, Duff, Duthie, O'Duffey, O'Duffy, Duffe, O'Duffe, Dufficy, Doey, Dohey, Doohey, Duhig, Duhigg, Dowey and O'Dowey. The name originates from Connacht.

It may refer to:

Irish edit

Australian edit

New Zealand edit

  • Ron Duffy, New Zealand rugby league footballer

Scottish edit

Welsh edit

English edit

North American edit

Multiple entries edit

Duffey edit

Fictional character edit

See also edit