From the experts:
Gareth, the name of a modest and brave knight in King Arthur's court, makes a sensitive, gently appealing choice, used more in its native Wales than anywhere else.
The name Gareth first appeared in Malory's Morte d'Arthur, as the lover of Eluned, the brother of Gawain and nephew of King Arthur. He also appears in the Gareth and Lynette segment of Tennyson's Idylls of the King. In the British version of The Office, Gareth is the name of the equivalent character of Dwight Schrute, and it also appeared in Four Weddings and a Funeral. Recommended nickname: Gaz. Not recommended nickname: Gary.