Claim: McMullen means "Son of Maolan" and originates in Ireland, an island in the North Atlantic.
Evidence: "Son of Maolan" Ireland Ireland (/ˈaɪərlənd/ (listen); Irish: Éire [ˈeːɾʲə (listen); Ulster-Scots: Airlann [ˈɑːrlən) is an island in the North Atlantic.