Stu

Stu is an English given name functioning as a short form of Stuart or Stewart, which derives from the Old English occupational term stigweard, composed of stig, meaning house or hall, and weard, meaning guard or keeper, thus broadly signifying a steward or household manager. The full form became prominent through the Scottish royal House of Stewart, the dynasty that produced numerous Scottish and later British monarchs. Stu is primarily used as an informal given name or nickname in English-speaking countries, and it shares its origin with the variants Stuart and Stewart.