Eta (disambiguation)

Look up eta or ETA in Wiktionary, the free dictionary.

Eta (Η or η) is the seventh letter of the Greek alphabet.

Eta or ETA may also refer to:

• Eta (given name)
• Eta, a derogatory term for the Burakumin in the Japanese feudal era
• ETA, an Elvis Tribute Artist

• Eta (glider), a German glider
• CNA Eta, an Italian aircraft

• Eta, a snack food brand owned by Griffin's Foods
• Empresa de Transporte Aéreo, a defunct Brazilian Airline
• Environmental Transport Association, a British roadside assistance company
• ETA SA, a Swiss watchmaking company
• ETA Star Group, a Dubai-based investment company
• ETA Systems, a defunct American computer manufacturer

• Engineering & Technologies Academy, in San Antonio, Texas, United States
• Ethiopian Teachers' Association, a trade union
• Evangelical Theological Academy, in Zwijndrecht, Netherlands
• Evangelical Theological Association, a former teaching institute in Melbourne, Australia

• ETA (separatist group) (Basque: Euskadi Ta Askatasuna), a Basque armed separatist group
• Electronic Travel Authorization or Electronic Travel Authority, an alternative to a travel visa required by many countries for entry
• Employment and Training Administration, of the United States Department of Labor
• European Technical Assessment of the European Organisation for Technical Approvals

• Dedekind eta function
• Dirichlet eta function
• Eta conversion
• Eta invariant
• Weierstrass eta function
• The small letter eta is used as 't Hooft symbol

• Eicosatetraenoic acid
• Eta meson
• Ethanolamine
• Ethionamide
• Event tree analysis
• Exfoliatin
• Hapticity
• Pseudorapidity
• Reproduction factor, in the nuclear engineering four factor formula
• Viscosity
• Entropy as defined in Boltzmann's H-theorem
• SARS-CoV-2 Eta variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19

• "E.T.A.", a song by Damon & Naomi from More Sad Hits, 1992
• "E.T.A.", a song by Justin Bieber from Changes, 2020
• "ETA", a song by Dr. Dre, Snoop Dogg, Busta Rhymes and Anderson .Paak from GTA Online: The Contract, 2022
• "ETA" (song), a song by NewJeans from Get Up, 2023

• Estimated time of arrival
• Estimated time of availability, announcement time of re-availability of down systems (servers, websites, etc.)
• England Touch Association, the national governing body for touch rugby within England
• Hurricane Eta, a Category 4 hurricane that occurred in the 2020 Atlantic hurricane season
• 'eta, a letter or glottal stop in the Tahitian languages
• Electronics Technicians Association, a professional association
• Landolphia owariensis, a vine native to Africa and sometimes known as eta

• Eta function (disambiguation)
• Eta Island (disambiguation)