SR1
SR1 or SR 1 or Sr1 stands for:
- SR1 (pocket calculator) , a pocket calculator from the GDR
- Simson SR1 , moped from Suhl
- Self-loading rifle SR1 , self-loading rifle made by Merkel
- SR 1 Europawelle , Saarland radio station
- VR class Sr1 , the oldest Finnish electric locomotive
