Coordinates: 42°06′13″N 9°30′46″E / 42.1036°N 9.5128°E / 42.1036; 9.5128

Aléria (Ancient Greek: Ἀλαλίη, Alaliē; Latin and Corsican: Aleria) is a commune in the Haute-Corse department of France on the island of Corsica. It includes the easternmost point in Metropolitan France.

Aléria shares the canton of Moïta-Verde with 13 other communes: Moïta, Ampriani, Campi, Canale-di-Verde, Chiatra, Linguizzetta, Matra, Pianello, Pietra-di-Verde, Tallone, Tox, Zalana and Zuani.

Aléria is 70 kilometres (43 mi) to the south of Bastia on Route N198, in the centre of the Plaine Orientale, also called the Plaine d'Aléria, the east-central coastal plain of the island facing Italy. It includes a number of villages and monuments. Most of the rest of the island is precipitously mountainous.

The eastern coastline is punctuated by a number of lakes connecting (but not always) to the Tyrrhenian Sea, the remnant of an ancient system of lagoons behind barrier beaches. The Corsicans refer to them under the name of Étang, "pool", although most are larger by far than an English pool. Marshland is also extensive on the coast requiring that cities be built inland from it. Malaria has historically been a problem near the marshlands and swamps of eastern Corsica. The fine barrier beaches are a recreational attraction.