SGF may mean:
- Stochastic Green Function, a quantum Monte Carlo algorithm for the simulation of lattice Hamiltonians
- Smart Game Format, a computer file format used for storing records of board games
- Sovereign Grace Fellowship of Canada, a fellowship for Baptist churches in Canada
- Springfield-Branson Regional Airport (IATA airport code "SGF") a public airport in Springfield, Missouri, United States
- The Spaceguard Foundation, a private organization studying outer-space objects to protect the Earth from possible collision
- Société générale de financement, a holding company owned by the government of Québec
- Sun God Festival, an annual concert event at the University of California, San Diego