Mellows
Mellows—This name is the anglicised form of O'Maol-Iosa, earlier Mac Maoil-Iosa, and rendered Malise and Mellis in the North of Scotland. The sept was located in Co. Leitrim and belonged to the Clan Rury of Emania, more correctly the Pictish nation in Ulster. O'Dugan writes of the sept: "Mac Maoil-Iosa of the fair countenance" ruled over Magh Breacraidhe, which district was located in the present County of Leitrim.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees