JSS

JSS may refer to:

Military

 * Joint Security Stations, components of 2007's Operation Imposing Law in Iraq
 * Joint support ship, a multi-role naval vessel
 * Joint Surveillance System, a USAF and FAA system for the atmospheric air defense of North America
 * Protecteur-class auxiliary vessel (previously the Joint Support Ship Project), naval auxiliaries for the Royal Canadian Navy

Organizations and corporations

 * Janathipathiya Samrakshana Samithy, a political party in the Indian state of Kerala
 * Japan Statistical Society, a learned society in Japan
 * Jönköpings SS, a Swedish swimming club
 * Joyson Safety Systems, an American automotive safety systems company

Schools

 * James Striar School of General Jewish Studies
 * Japanese School of Suzhou, a Japanese international school in China
 * JSS Academy of Higher Education & Research, an institute of higher education in Mysore, Karnataka, India
 * JSS Private School, a CBSE co-educational school located in Al Safa, Dubai, United Arab Emirates
 * Jurong Secondary School, a government secondary school in Taman Jurong, Singapore

Other

 * Jet Stream International (airline code: JSS), a Pakistani airline
 * Journal of the Siam Society, a scholarly journal published by the Siam Society in Bangkok
 * "JSS" (The Walking Dead), the second episode of the sixth season of the post-apocalyptic horror television series
 * Junior Solar Sprint, a competitive program for 5th-to-8th-grade students to create a small solar-powered vehicle
 * Network Security Services for Java (JSS), a component of the Network Security Services collection of cryptographic computer libraries