SFSR

SFSR (countable and uncountable, plural SFSRs)

1. Initialism of Soviet federated socialist republic or initialism of socialist federated Soviet republic:
   1. Russian Soviet Federative Socialist Republic (Russian SFSR) (1917-1991).
   2. Transcaucasian Socialist Federative Soviet Republic (Transcaucasian SFSR) (1922-1936).
2. Initialism of Santa Fe Southern Railway, a short line railroad in New Mexico, United States.
3. Initialism of San Francisco Syncope Rule, a clinical prediction rule for syncopal episodes.
4. Initialism of sorry for slow reply, in online communication.

• Russian SFSR
• Transcaucasian SFSR
• SSR
• Soviet Socialist Republic
• Soviet Union
• autonomous oblast
• Soviet Socialist Republic

• FSRs, SSRF