RKI
Look up RKI in Wiktionary, the free dictionary.
RKI may refer to:
- Robert Koch Institute, a German federal government agency and research institute
 - ISO 693-3 language code for the Arakanese language
 - Rokot Airport, Mentawai Islands, West Sumatra, by IATA code
 - NIAI RK-I, a two-seat cabin aircraft designed and built in the USSR in 1938