{{wiktionary|ESS|ess|-ess}} The suffix '''''-ess''''' (plural ''-esses'') appended to English words makes a female form of the word.
'''ESS''' or '''ess''' may refer to: {{TOC right}}
== Education == * Ernestown Secondary School, in Odessa, Ontario * European Standard School, in Dhaka, Bangladesh
==Government== * Economic System of Socialism, an East German economic policy * Emergency Social Services, in British Columbia, Canada * Emergency special session of the United Nations General Assembly (ESS of UNGA), an unscheduled meeting of the general assembly * Environmental Standards Scotland, in Scotland, United Kingdom * Ethiopian Statistical Service
== People == * Barbara Ess (1948-2021), American photographer * Brandon Ess (born 1971), German cricketer * Émile Ess (1932–1990), Swiss rower * Gene Ess, Japanese-American guitarist
==Science and medicine== * Earth system science * Empty sella syndrome * Epworth Sleepiness Scale * European Social Survey * European Spallation Source, a nuclear research facility * Euthyroid sick syndrome * Evolutionarily stable state * Evolutionarily stable strategy * Explained sum of squares * Effective sample size
== Sport == * ES Sétif, an Algerian professional football club * Étoile Sportive du Sahel, a Tunisian football club * Extreme Sailing Series, a series of sailing regattas * Eye Safety Systems, one of major manufacturer of tactical eye protection
==Technology== * Electronic switching system, an automated telephone exchange * Emergency stop signal, on automobiles * Energy storage system * Environmental Sensor Station * Environmental stress screening * ESS Technology, an American multimedia technology manufacturer * Experimental SAGE Subsector, a prototype Cold War Air Defense Sector
===Computing=== * Emacs Speaks Statistics * Emotion-sensitive software * Extended Service Set, a wireless networking unit * IBM Enterprise Storage Server
==Other uses== * S, the letter * Central Siberian Yupik language * Essex, England * Essen/Mülheim Airport in Germany * Employee self-service * Eurest Support Services, a British food services company * Eternal Subordination of the Son, theological position
{{Disambiguation|surname}}