GSIS

GSIS may refer to:

Education

 * German Swiss International School, Hong Kong
 * German Swiss International School (Ghana)
 * Good Shepherd International School, Ooty, Tamil Nadu, India
 * Josef Korbel School of International Studies (formerly named Graduate School of International Studies) of the University of Denver
 * Gyeonggi Suwon International School, South Korea

Other uses

 * Geoscience Information Society, United States
 * Government Service Insurance System, Philippines
 * GSIS Museo ng Sining, an art museum in Pasay, Philippines