Eta (Η or η) is the seventh letter of the Greek alphabet.
Eta or ETA may also refer to:
People and fictional characters Eta (given name), a list of people and fictional characters Marie-Louise Eta (born 1991), German football player and manager
Aircraft Eta (glider), a German-Italian motor glider CNA Eta, an Italian aircraft
Brands and organizations 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 (Czech company), a Czech household-appliance company and brand ETA Star Group, a Dubai-based investment company ETA Systems, a defunct American computer manufacturer Electronics Technicians Association, a professional association England Touch Association, the national governing body for touch rugby
Education 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
Government and politics ETA (separatist group) (Basque: ), a Basque armed separatist group Electronic travel authorization, or electronic travel authority, an alternative to a travel visa Employment and Training Administration, of the United States Department of Labor European Technical Assessment, an analytical document written by the European Organisation for Technical Approvals
Science and technology Eicosatetraenoic acid or ETA, a fatty acid Ethanolamine or ETA, a naturally occurring organic compound Ethionamide or ETA, an antibiotic used to treat tuberculosis Event tree analysis or ETA, a logical modeling technique SARS-CoV-2 Eta variant, one of the viruses that causes COVID-19
Music "ETA" (song), 2023, by NewJeans "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", a song by Chandler Leighton, 2024
Other uses Elvis tribute artist, an Elvis Presley impersonator Eta, a derogatory term for the Burakumin in the Japanese feudal era Estimated time of arrival Hurricane Eta, a 2020 Category 4 hurricane Landolphia owariensis, a vine native to Africa and sometimes known as eta 'eta, a letter or glottal stop in the Tahitian languages Eta Island (disambiguation)
See also Eta function (disambiguation) Eta conversion Eta invariant Eta meson