In rivers:

• River Aire, a river in Yorkshire, England
• Aire (Aisne), a river in the Ardennes département, northern France
• Aire River (Switzerland), a river in the Canton of Geneva, in Switzerland

In towns:

• Aire-sur-la-Lys, a town in the Pas-de-Calais département in France
• Aire-la-Ville, a municipality in the Canton of Geneva, in Switzerland
• Aire-sur-l'Adour, a town of Aquitaine, in the Landes département
• Aire, Ardennes, a commune in the Ardennes département in France

In other:

• Aire (program), a wireless network discovery program for Windows
• AIRE, an acronym for Autoimmune Regulator
• The Siege of Aire was a military action in 1710 in the War of the Spanish Succession
• Aire Diocese in France