Northern Irish: 1. habitational name from a place near Glasgow, Scotland, named with the genitive case of the medieval personal name Hugh + Middle English tune, toun ‘settlement’, ‘village’ (Old English tūn ‘enclosure’, ‘settlement’). The landlord in question is a certain Hugo de Paduinan, who held the place c.1160. The Scottish surname is common in Ulster. 2. Anglicized form of Gaelic Mac Uisdein, Mac Uistein (see McCutcheon).