The Malian or Maliac Gulf (, Maliakós Kólpos) is a gulf in the western Aegean Sea. It forms part of the coastline of Greece's region of Phthiotis. The gulf stretches east to west to a distance of , depending on the definition, and is very shallow, with a maximum depth of . The only harbour is that of Stylida, which serves the city of Lamia. To its east is Cape Lichada, the northwesternmost point of the island of Euboea.