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