The Romanian Intelligence Service is Romania's main domestic intelligence service. Its role is to gather information relevant to national security and hand it over to relevant institutions, such as Romanian Government, presidency and law enforcement departments and agencies. The service is gathering intelligence by ways such as signals intelligence (SIGINT), open-source intelligence (OSINT) and human intelligence (HUMINT).

Mihail Moruzov was the founder and first head of Romania's modern domestic espionage agency, the Secret Intelligence Service (SSI), forerunner of today's SRI.