Meaning and history
Stu is an English masculine short form of Stuart or Stewart. Those names began as occupational surnames from Old English stigweard, combining elements for “household” or “hall” and “guardian,” hence “household guardian” or “steward.” The surname became historically prominent through Scotland’s royal House of Stewart and later developed into a given name. Stu is usually informal but can stand independently. Notable bearers include American basketball player Stu Lantz and Canadian broadcaster and former ice hockey executive Stu Grimson.