What is "areia"

Areia may refer to:

• Areia (trilobite)
• Areia, Paraíba, a city in Brazil
• Aria (satrapy), or Greek Areía, the Greek name form of a satrapy of the Achaemenid Empire in today's Afghanistan
• Athena, as an epithet

Areia is a genus of trilobite in the order Phacopida, which existed in what is now the Czech Republic. It was described by Barrande in 1872, and the type species is Areia bohemica.