Megaw, Magaw
Megaw, Magaw—These two names are the anglicised forms of Mag Adhamh. The other forms of the name are M'Gaw and M'Gaw. This name is found mostly in Galloway and in N.E. Ulster. The name has about 9 other anglicised forms.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees