ERP

ERP or Erp may refer to:

Economics

• Effective rate of protection, of tariffs
• Equity risk premium, excess return on risky investments
• European Recovery Program or Marshall Plan

Science and technology

• Effective radiated power, of directional radio transmission
• Electronic Road Pricing, in Singapore
• Enterprise resource planning, a business process system

Medicine

• Effective refractory period, in a cardiac cycle
• Estrogen receptor positive, a cancer pathology test result
• Event-related potential, a measured brain response
• Exposure and response prevention, a treatment method in behavioral therapy
• OspE/F-like related protein, in Lyme disease microbiology

Places

• Erp, Ariège, a village in France
• Erp (Germany), a village
• Erp, Netherlands, a town

Other uses

• Erp (Pict), father of Drest I of the Picts
• Ejército Revolucionario del Pueblo (disambiguation), (Spanish for People's Revolutionary Army), several Latin American communist or socialist organizations
• Energy-related products, that use or affect energy consumption
• Erotic role-playing, the use of role-playing in sexual or romantic contexts

See also

• Van Erp, a Dutch surname
• D'Erp Castle, Baarlo, Limburg, Netherlands
• Ethernet Ring Protection Switching (ERPS), used in Ethernet networks
• Earp (disambiguation)