Lyn or LYN may refer to:
People Lyn (singer), South Korean singer Lyn (gamer), South Korean Warcraft III player Lyn (given name) Lyn (surname)
In science and technology Lynx (constellation), standard abbreviation Lyn (locomotive), a British narrow gauge railway locomotive built in 1897 for the Lynton and Barnstaple Railway Lyn (Src family kinase), in biochemistry LyN, a video game engine
In fiction Lyn Me, a character in the Star Wars universe Lyndis, a character from the Fire Emblem series
Other uses Lyn, Ontario, Canada, a community within the township of Elizabethtown-Kitley Lyon–Bron Airport (IATA code LYN) Lyn Fotball, Norwegian football club from Oslo established in 1896 HNoMS Lyn, the name of ships of the Royal Norwegian Navy
See also Lynn (disambiguation) Lin (disambiguation)