McIlraith is a surname of Gaelic Scottish origins 'Mac gille Riabhaich', meaning 'The son of the brindled man'. https://www.surnamedb.com/Surname/McIlraith
Notable people with the surname include:
George McIlraith (1908–1992), Canadian lawyer and politician Hugh McIlraith (19th century), New Zealand politician Sheila McIlraith, Canadian computer scientist
See also Matt McIlwrick Revie
References