Gisin

Gisin or GISIN may refer to:
 * Global Invasive Species Information Network
 * Michelle Gisin (born 1993), Swiss alpine skier
 * Dominique Gisin (born 1985), Swiss alpine skier
 * Marc Gisin (born 1988), Swiss alpine skier
 * Nicolas Gisin (born 1952), Swiss physicist
 * Hermann Gisin, Swiss zoologist