Log-structured File System (BSD), a log-structured file system for NetBSD
Logic File System, a research file system that uses propositional logic for querying and navigating files
Other
Luiz Felipe Scolari (born 1948), Brazilian football manager
Nova Bus LF Series or Nova LFS, a bus manufactured by Nova Bus used mainly for public transit
Labour Force Survey, a household survey of employment statistics conducted in all European Union countries as well as Canada, Australia and New Zealand