RRI

RRI may refer to:

Radio Republik Indonesia, the Indonesian state radio network
Radio Romania International
Raman Research Institute, a physics research institute and trust
Robarts Research Institute in London, Canada.
Rick A. Ross Institute, an anti-cult organization
Route relay interlocking, an electrical system used in Railway signalling
NYSE code for Reliant Energy
Road Routing Information within Integrated Transport Network data provided by Ordnance Survey
RRI Rhein Ruhr International, Consulting Engineers

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