The name Althea is a girl's name of Greek origin meaning "with healing power". Althea and is often added to lists like Mythology Baby Names for Girls and discussed in our forums with posts like "Girls Makeover - Two Middles".
From the experts:
Althea is a poetic, almost ethereal name found in Greek myth and pastoral poetry, associated in modern times with the great tennis player Althea Gibson, the first African-American to win at Wimbleton.
Althea appears in Greek mythology as the mother of the hero Meleager and was revived by the seventeenth century poet Richard Lovelace as a poetic pseudonym for his beloved.
These days, parents would also appreciate the short form Thea.