Foma may refer to:
- FOMA (Freedom of Mobile Multimedia Access), a Japanese mobile telecommunications service
- Sergei Fomenko, nicknamed "Foma", Ukrainian musician
- Foma, a term meaning "harmless untruths" from the fictional religion Bokononism in Kurt Vonnegut's novel Cat's Cradle
- Foma, the narrator of Nikolai Gogol's short story "A Bewitched Place"
- Foma, an album by The Nixons
- Foma, a Brazilian design studio founded by Davison Carvalho
- Foma, a Czech photographic film company, formerly Fotochema
- foma (software), an open-source compiler, programming language, and C library for constructing finite-state automata and transducers compatible with Xerox lexc and twolc