The name Avalon is a girl's name of Celtic origin meaning "island of apples". Avalon and is often added to lists like Middle Names for Girls and discussed in our forums with posts like "Pick 5 (GIRLS)".
From the experts:
Avalon, an island paradise of Celtic myth and Arthurian legend--it was where King Arthur was taken to recover from his wounds-- and also the colorful capital of the California island of Catalina-- makes a heavenly first name. Actress Rena Sofer and British musician Julian Cope used it for their daughters.
Avalon manages to blend the appeal of Ava and Evelyn, while sounding more interesting and unique.