Ersa (disambiguation)

Ersa or ERSA may refer to:

• Ersa – a figure in Greek mythology
• Ersa, Haute-Corse – a commune of the Haute-Corse department of France, on the island of Corsica
• European Regional Science Association (ERSA) – the European section of the Regional Science Association International
• En Route Supplement Australia (ERSA) – part of the Aeronautical Information Publication (AIP) published by Airservices Australia
• Economics Research South Africa (ERSA)
• Engineering of Reconfigurable Systems and Algorithms