The name Isolde is primarily a female name of German origin that has an unknown or unconfirmed meaning.
Isolde, the spelling first used in a 13th century German poem, is one the variants of the name Iseult. While the meaning is uncertain, it may derive from Germanic elements meaning "ice" and "battle" or Brythonic origins with the possible meaning "she who is gazed upon".
The name is famous from the legend of Tristan and Iseult. "Tristan and Isolde" is an opera by Richard Wagner based on the ancient fable.