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