The FLN initials may refer to:
Transportation FLN Frisia Luftverkehr, German airline Flint (Amtrak station), in Michigan Flint railway station, in Wales Hercílio Luz International Airport in Florianópolis, Brazil
Other FLn, the faculty of language in the narrow sense, as hypothesised in Chomskyan Universal grammar Family Life Network, American radio network Fine Living Network, American television network FLN football team, defunct Algerian football team Filamin, class of proteins Flintshire (historic), historic county in Wales (Chapman code) Florianópolis Air Force Base, in Brazil Freelancer.com, a crowd-sourcing marketplace National Liberation Front (disambiguation) (French: ; Spanish: )