SWG

SWG may refer to:
 * IBM Software Group, an internal division of IBM
 * Scientific Working Group, an organisational structure for US forensic scientists
 * Screen Writers Guild, a former writers union
 * Secure Web Gateway, a product providing threat protection and content filtering for internet access
 * Sleeping With Ghosts, a 2003 album by UK band Placebo
 * Society of Woman Geographers, a professional association for researchers, scientists, explorers, and others in geographic-related fields.
 * Standard wire gauge, a measurement for wires and sheet material
 * Star Wars Galaxies, a 2003 computer game by LucasArts
 * Strain Wave Gearing, a type of mechanical gear system that uses a flexible spline with external teeth, to form a compact, high gear ratio mechanism.
 * Swabian German (ISO 639-3 language code)
 * SWG, a chlorine generator used in salt water chlorination, a way of sanitizing swimming pools by separating the chlorine ions (Cl-) from salt (NaCl)
 * ICAO code for Sunwing Airlines
 * Special Warfare Group (Singapore), Singapore police