Lys or LYS may refer to:
Places Les Lys, a Premier cru vineyard in Chablis Lyon–Saint-Exupéry Airport, France (by IATA code) Lys (department), a département during the First French Empire, now in Belgium Lys (Dora Baltea), a stream of Aosta Valley in Italy Lys (river), a river in France and Belgium Lys, Nièvre, a commune in the Nièvre department in France Lys, Pyrénées-Atlantiques, a commune in the Pyrénées-Atlantiques department in France Lys, an old orthography of Liss, Hampshire, England
Science Lys (or K), an abbreviation for the amino acid lysine Plural form of the symbol for light-years
People Lys (surname) Lys Assia (1924–2018), Swiss singer Lys Mouithys (born 1985), Congolese football player
Other uses Battle of the Lys (1918), a battle of World War I in France in the spring of 1918 Fleur-de-lys or Fleur-de-lis, a stylized representation of a lily or iris, used in heraldry Lisans Yerleştirme Sınavı (Student Selection and Placement System), a standardized test for admission to higher education in Turkey LYS (sailing), a sailing handicapping system Lys, a key town in Arthur C. Clarke's 1956 book The City and the Stars Lys, a city-state in George R.R. Martin's novels A Song of Ice and Fire
See also Lyce, an Amazon named by Valerius Flaccus Lisse, a town and municipality in the Netherlands Lisses, a commune in France Lice (disambiguation) Lis (disambiguation) Liss (disambiguation)