The name Isolde possibly means "beautiful lady" or "fair lady" in Welsh.
Famous bearers
Isolde is the name of several characters in the Arthurian story of Tristan and Isolde.
The most prominent is Isolde of Ireland, the wife of Mark of Cornwall and adulterous lover of Sir Tristan.
A modern bearer is Isolde Kostner (born 1975), an Italian former Alpine skier.