ESD

ESD may refer to:

Science

 * ESD (gene), a human gene/enzyme
 * Electrostatic discharge, a sudden flow of electricity between two electrically charged objects
 * Electrostatic-sensitive device, any component which can be damaged by common static charges
 * Energy spectral density, a part of a function in statistical signal processing
 * Environmental secondary detector, a gaseous detection device used with environmental scanning electron microscopes
 * Equivalent spherical diameter, a diameter of a sphere of equivalent volume
 * Extreme subdwarf, a type of star

Medicine

 * End-systolic dimension, the diameter across a ventricle in the heart
 * Endoscopic submucosal dissection, a medical therapy with endoscopy

Education

 * Education for sustainable development, international learning methodology
 * Educational service district (disambiguation), regional education unit in some U.S. states
 * Episcopal School of Dallas, day school in Texas, U.S.
 * Evangelical School for the Deaf, in Luquillo, Puerto Rico

Government and law

 * Electronic services delivery, government services provided through the Internet or other electronic means
 * Empire State Development Corporation, an American public benefit umbrella organization
 * Employment Security Department, a Washington state unemployment agency
 * Examination support document, a submission to the United States Patent and Trademark Office

Technology

 * Electronic smoking device, a device that simulates the feeling of smoking
 * Electronic software distribution, delivery of digital media content
 * ESD format, a file format
 * Emergency shutdown, the stoppage of a process plant in certain hazardous conditions
 * Engineering Society of Detroit, a multi-disciplinary association in Michigan, U.S.
 * Enlightened Sound Daemon, audio software
 * Environmentally sustainable design, complying with the principles of ecological sustainability in the design of objects and buildings

Transport

 * Elmstead Woods railway station (station code), in London, England
 * Esen Air (ICAO airline designator), a defunct airline from Kyrgyzstan
 * Essendon railway station, Melbourne
 * A US Navy hull classification symbol: Expeditionary transfer dock (ESD)
 * Orcas Island Airport (IATA code), Eastsound on Orcas Island, Washington, United States

Other uses

 * East Side Digital Records, an American record label
 * Eta Sigma Delta, an American honor society