SRR can stand for:
- Savannah River Remediation URS, Bechtel, CH2M HILL, and B&W TSG have joined forces to create Savannah River Remediation LLC (SRR)— the Tank Farm Contractor at Savannah River Site
- Search and Rescue Region
- SRR IPC is an implementation of synchronous Send/Receive/Reply (SRR) inter-process communications message passing as a Linux kernel module.
- serine racemase, an enzyme which generates D- serine from L-serine.
- Shadowrun Returns, a 2D turn-based strategy RPG by Harebrained Schemes
- Sierra Blanca Regional Airport in Ruidoso, New Mexico (IATA Code: SRR)
- Siva Rama Raju, a Telugu film starring Jagapati Babu
- Societad Retorumantscha, a Swiss-based language association
- Societatea Română de Radiodifuziune or Radio România
- Soyuz Radiolyubitelei Rossii, the Romanized name of the Russian Amateur Radio Union
- Special Reconnaissance Regiment an element of United Kingdom Special Forces
- Split-Ring Resonator, an artificially produced structure common to metamaterials.
- Sugar Ray Robinson, boxer
- System Requirements Review, a Technical Review or Design Review assessment as part of a system development life cycle and military acquisition
- Serine racemase, an enzyme