The meaning of the Acronym RIV is...

RIV is

• Recirculation Isolation Valve

More Meanings For RIV:

• River
• Riviera Holdings Corporation
• Registrar Of Imported Vehicles
• Recirculation Isolation Valve
• Registrar Of Imported Vehicles
• Riviera
• Registrar Of Imported Vehicles
• Region IV

RIV is also in:

• AMEX Symbols
• International Business
• NASA
• Ocean Science
• Toastmasters
• Transportation
• US Government