The suffix -ess (plural -esses) appended to English words makes a female form of the word.
ESS or ess may refer to:
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