The School for Scandal, an 18th century play by Richard Brinsley Sheridan

Superman film series

San Francisco Symphony

The Finnish Standards Association, the National standards organization of Finland

The School for Field Studies, the USA's oldest and largest undergraduate environmental study abroad program

Edmund A. Walsh School of Foreign Service, a school within Georgetown University

Sidwell Friends School, private Quaker school in Washington DC

The Sydney Football Stadium

San Francisco Section of the California Interscholastic Federation

Seoul Foreign School, English language school in Seoul, South Korea

Self-certifying File System, a decentralized network file system

Sveriges Förenade Studentkårer, Swedish National Union of Students

SAN file system

Smart File System, journalling filesystem used on Amiga computers

SquashFS, a compressed file system for Linux operating systems

Simple Features, OpenGIS standard for storage of geographical data

Simple File System, a filesystem that doesn't support features like file fragmentation or journaling

Scalable File Share, (Expensive) storage system created by HP

The Swedish Code of Statutes, in Swedish called Svensk författningssamling (SFS)

Seifert fiber space in low-dimensional topology