The name Eos is a girl's name of Greek origin meaning "dawn". Eos and is often added to lists like Mythology Girl Names and discussed in our forums with posts like "A brother or sister for little Jack or Olivia".
From the experts:
Eos -- that's pronounced with a short e like eros without the r -- is the Greek Titan of the dawn. Any ancient name with a sleek modern feel has definite revival possibilities. Eos could be an inventive way to honor grandma Dawn.