Donal Roe MacCarthy Mór (died 1302) was a 13th-century noble of Ireland.
He was a Prince of the Kingdom of Desmond, his father being Cormac Fionn MacCarthy, King of Desmond between 1229 and 1247.
He married Margaret Fitzmaurice, the daughter of Nicholas Fitzmaurice, Lord of Kerry and Slaine O'Brien, they had issue:
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