Avlida (Greek: Αυλίδα, pronounced [avˈliða]) or Aulis (/ˈɔːlɪs/) a former municipality in Euboea regional unit, Greece.

Traditionally, it is identified with the ancient Aulis, the port from which the Greek army set sail for the Trojan War and the setting for the Euripides play, Iphigenia in Aulis.

The region was settled in Antiquity, but the modern settlement likely dates to the early 11th century, when the local church of Saint Nicholas was built.

Additional Byzantine-era remains have been found near the location of the ancient temple of Artemis.

[4] In 1350, as part of the war between the Republic of Venice and the Republic of Genoa, the Venetians defeated and captured a Genoese fleet of fourteen Genoese galleys on the coast off Avlida.