ESS

Ess is the letter S.

ESS may also stand for:

Technology

• Electronic switching system, an automated telephone exchange
• Emacs Speaks Statistics, a math add-on for a text editor
• ESS Technology, a manufacturer of multimedia technology
• Environmental stress screening, a test for electronic hardware
• IBM Enterprise Storage Server, a data storage system
• Extended Service Set, a wireless networking unit
• Energy storage system

Science

• Evolutionarily stable strategy, a pattern of population behavior
• Explained sum of squares, a measure of statistical accuracy
• Epworth Sleepiness Scale, an assessment for sleep disorders
• European Social Survey, a mapping of social dispositions
• European Spallation Source, a nuclear research facility
• Earth system science, the interdisciplinary study of the Earth as a system

Government

• Economic System of Socialism, an East German economic policy
• European Security Strategy, a European Union security policy
• Emergency Social Services, a British Columbian emergency service

Schools

• European Standard School, in Dhaka, Bangladesh
• Enfield Station School, in School Administrative Unit 31, Maine, United States

Other uses

• Essex, a county in England
• Eastern Sociological Society, an organization for the advancement of sociology
• Employee self-service (web-based application), a human resources management application
• English Springer Spaniel, a breed of dog
• Endemol Southern Star, a television production company
• Etelä-Suomen Sanomat, a daily newspaper in Lahti region, Finland
• Étoile Sportive du Sahel, a Tunisian football club
• Eurest Support Services, a company that feeds armies
• Same store sales, a measure of retail sales