ESX

ESX may refer to:


 * VMware ESX, a computer virtualization product
 * Dodge Intrepid ESX, a hybrid electric automobile
 * Essex Junction station (station code ESX), Vermont, United States
 * ESX-1, an Electribe electronic musical instrument
 * Ethosuximide, an anti epileptic drugs paper
 * ESX-1, a pore-forming protein system of M.tuberculosis