Lyn or LYN may refer to:
A surname, variant of Lynn
In television and film:Euros Lyn, Welsh director for televisionLyn Ashley, Australian actress who worked in the United Kingdom on television during the 1960sLyn Brown (journalist), African American anchorwomanLyn Collingwood, Australian television and film actressLyn Harding, British actorLyn James, actress
In Biochemistry:Lyn, a Src-Family Kinase
Inanimate entities:Lynx (constellation), standard abbreviation
In other fields:LYN, the IATA Code for Lyon–Bron AirportLyn, a photography image editing and database application for Apple's Mac OS X platformLyn Fotball, Norwegian football club from Oslo established in 1896Lyn, a character from the Fire Emblem seriesLyn (singer), South Korean singerLyn Brown (politician), British politicianLyn Hejinian, United States poet, essayist, translator and publisherLyn (locomotive), a British narrow gauge railway locomotive built in 1897 for the Lynton and Barnstaple RailwayLyn Me, a character in the Star Wars universeLyN engine, a video game engineLyn, pseudonym of Warcraft III player Park June (professional gamer)Lyn, a soccer field and skating rink at Billingstad, Norway.