Quinney
Quinney—This name in the Isle of Man is the anglicised form of the Galloway names Mawhinney, Mewhinney, and M'Whinney, in Gaelic Mac Chonnigh; a form also of Mac Kenzie. M'Weeney and M'Kinney in Ulster are other forms.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees