JS or js may refer to:
JSTOR (/ˈdʒeɪstɔːr/ JAY-stor; short for Journal Storage) is a digital library founded in 1995. Originally containing digitized back issues of academic journals, it now also includes books and primary sources, and current issues of journals.
JS Group is a financial services group in Pakistan, founded in 1971 by Jahangir Siddiqui. The company controls and operates financial services companies in Pakistan.
JSS Science and Technology University or Jagadguru Sri Shivarathreeshwara Science and Technology University - formerly Sri Jayachamarajendra College of Engineering (often shortened to SJCE), is a government aided technical co-educational college located in Mysore, Karnataka, India.
JSONP, i.e. JSON with padding, proposed by Bob Ippolito, is used to request data from a server residing in a different domain than the client.
JST connector is an electrical connector that is manufactured by J.S.T. Mfg. Co. (Japan Solderless Terminal).