Hadwynne \ha-dwynne, hadw(yn)-ne\ as a boy's name is a variant of Hadwin (Old English), and the meaning of Hadwynne is "friend in war".

The baby name Hadwynne sounds like Hadwyn, Hadwinn and Hedwynn. Other similar baby names are Hardwynn, Goodwynne, Hedwinn, Hardwyn and Hedwyn.