CISS

Ciss is a surname (see also for a list of people with the name).

CISS may refer to:


 * CISS-FM, Canadian radio station
 * Inter-American Centre for Social Security Studies a Social Security related international organisation in Latin America and the Caribbean
 * Continuous Ink Supply System
 * Center for Intelligence and Security Studies, a center at the University of Mississippi
 * Concordia International School Shanghai, a coeducational day school Preschool to Grade 12 in Shanghai
 * Computed Images System & Services division, a 1960s division of General Electric, now called "Genigraphics"
 * Comité International des Sports des Sourds, "The International Committee of Sports for the Deaf"
 * Canadian International School System
 * Chirality-induced spin selectivity, a phenomenon where the handedness of molecules influences the spin-polarization of emitted or transmitted electrons