Erythraean

Erythraean or Erythraian may refer to:
 * Eritrea
 * Erythraean Sibyl, the prophetess of classical antiquity presiding over the Apollonian oracle at Erythrae, a town in Ionia
 * Erythraean Sea, the name in ancient cartography for a body of water located between the Horn of Africa and the Arabian Peninsula, now identified as the Gulf of Aden