Unwinn \u-nwi-nn, un-winn\ as a boy's name is a variant of Unwin (Old English), and the meaning of Unwinn is "nonfriend".

The baby name Unwinn sounds like Unwyn, Annan and Einion. Other similar baby names are Aswinn, Elwinn, Gwinn, Irwinn, Erwinn and Oswinn.