In Greek mythology, Argea (or Argeia) was a daughter of King Adrastus of Argos. She was married to Polynices, the exiled king of Thebes.

Sources include:

• Apollodorus 3.6.1
• Euripides in The Phoenician Women and Suppliants, who mentions the wedding without giving her name.
• Hyginus, who in his Fabulae (Latin) calls her Argia.
• Robert Graves in his popular The Greek Myths (106c) prefers the spelling Aegeia.