Full name: Lillestrøm Sportsklubb
Nicknames: Kanarifuglene, Fugla
Founded: 1917
Stadium: Åråsen Stadion, Lillestrøm
Capacity: 11,637
League: Tippeligaen, Norwegian Premier League
Website: www.lsk.no

Lillestrøm Sportsklubb is a Norwegian football club from the city of Lillestrøm. It was founded in 1917. Over the years the club has had around 40 players who have at the same time represented the Norwegian national team. It has been Norwegian Elite League champion five times, and it has also won the Norwegian Football Club five times.