Cem Sultan (1459–1495) was a prince of the Ottoman Empire.

Cem or CEM may also refer to:

Colleges College of Eastern Medicine, a branch of Southern California University of Health Sciences, in Los Angeles, California, US College of Emergency Medicine, now part of the Royal College of Emergency Medicine College of Estate Management, former name of the University College of Estate Management

Organizations Christian Education Ministries, Australian school organisation Commission of Ecosystem Management, a commission of the International Union for Conservation of Nature Compagnie Électro-Mécanique, a former French electrical engineering manufacturer Companhia de Electricidade de Macau, a private public utility company of Macau Curtis Electromusic Specialties, an integrated circuit manufacturer Episcopal Conference of Mexico, Mexican assembly of Catholic bishops

Science and technology Card Electromechanical, a computer hardware specification related to PCI Express CEM cell, a cell line derived from human T cells Central Electronic Module, of a Volvo; for example see Volvo 480 Chain ejection model, a model explaining electrospray ionization in mass spectrometry Channel electron multiplier, in a vacuum tube Combined Effects Munition CBU-87 Combined Effects Munition, a US cluster bomb Composite epoxy material, a group of composite materials Computational electromagnetics, modeling the interaction of electromagnetic fields with physical objects and the environment Computational Engineering Model, an algorithmic framework for the generation of computational geometry, based on encoded engineering knowledge Contagious equine metritis, a type of metritis (uterine inflammation) in horses Cylindrical Energy Module, a type of engine

Other uses Cem (given name), list of people with the name Cem (surname), list of people with the surname Cem (river), a river flowing through Albania and Montenegro Cem (magazine), a satirical magazine between 1910 and 1929 in the Ottoman Empire and then in Turkey Certified Emergency Manager, a credential from the International Association of Emergency Managers Certified Energy Manager, a credential from the Association of Energy Engineers Civil Emergency Message, a warning issued through the Emergency Alert System in the US Customer experience management Jem (Alevism) or cem, a ceremony of Alevism Central Airport's IATA code

See also

CEM-I, CEM-II, CEM-III, CEM-IV, CEM-V, types of cement