GYS

GYS may refer to:

People

 * Gys van Beek (1919–2015), Dutch resistance member during World War II
 * Leda Gys (1892–1957), Italian film actress
 * Robert Gys (1901–1977), French art director

Other uses

 * Glycogen synthase
 * Great Yorkshire Show
 * Guangyuan Panlong Airport, Sichuan, China
 * Operation GYS, an Israeli operation conducted during the 1948 Arab–Israeli War