Macklen constitutes a modern Anglicization of the Gaelic patronymic Mac Gille Eoin, itself historically borne by Scotland’s Highland Maclean clan. Its morphological composition—combining the prefix Mac (“son of”) with an elided form of Gille Eoin (“servant of John”)—denotes a lineage-oriented naming tradition rooted in medieval Scottish ecclesiastical devotion. In Anglo-American onomastic practice, its phonetic realization, MAK-lən (/ˈmæk.lən/), aligns with standard English stress patterns while preserving a vestige of Gaelic phonology. Empirical data from the United States show that, from 2011 through 2024, between five and twenty-five newborns per annum have been given the name, resulting in a rank fluctuating between 877 and 928; such consistency underscores its status as a rare yet steadily adopted masculine appellation. By bridging ancestral homage and contemporary individuality, Macklen offers parents a distinctive option within the broader landscape of modern American naming conventions.