The name Isolde is a girl's name of Welsh origin meaning "ice ruler". Isolde and is often added to lists like Best Cool Unusual Girls' Names and discussed in our forums with posts like "Best name or combo from previous poster's signature!".
From the experts:
Now that Tristan has been rediscovered, maybe it's time for his fabled lover in the Arthurian romances and Wagnerian opera, a beautiful Irish princess, to be brought back into the light as well.
This would make an artistic and romantic choice, as the medieval heroine is seen as a symbol of undying--if unhappy--love.
In Marilyn French's novel The Women's Room, the character Isolde is nicknamed Iso. Isolde is currently a Top 500 name in the Netherlands.
Variations include Iseult, Isolt, Isoud, Isolda and Yseult.