Eta (disambiguation)

ETA ([Euskadi Ta Askatasuna] Error: {{Lang}}: text has italic markup (help)) is a Basque separatist group.

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

ETA may also refer to:

• ETA (Egyptian Tourist Authority)
• Eicosatetraenoic acid, an omega-3 fatty acid
• ETA SA, a Swiss watchmaking company
• ETA Systems, defunct manufacturer of ETA10 supercomputers
• ETA a. s., a Czech manufacturer of electronic apparel
• Electronic Technician's Association, a not-for-profit professional association of electronics technicians
• Electronic Travel Authority, Australian electronic visa
• Employment and Training Administration, a branch of the US Department of Labor
• Engineering and Technology Academy, a magnet school located in San Antonio, Texas
• Environmental Transport Association, a British breakdown and road rescue company
• Eric the Actor, a member of The Howard Stern Show's Wack Pack
• Estimated time of arrival, a measure of when a vehicle or data packet is expected to arrive (or "expected time to achieve")
• Ethiopian Teachers' Association, a trade union representing teachers in Ethiopia
• Ethiopian Telecommunication Agency, an agency that regulates the telecommunication sector of Ethiopia
• Evangelical Theological Association, an associated teaching institute of the Australian Melbourne College of Divinity
• Exercise Triggered Allergy, an allergy that only occurs when you exercise after eating the allergen.
• Evolutionary Terminology Auditing, a novel methodology to assess the quality of terminologies using reality as benchmark

Eta may also refer to:

• Eta Aircraft eta, a very high performance German glider
• Eta Carinae, a highly luminous hypergiant double star
• Eta conversion or η-conversion, the idea of extensionality in lamda calculus
• Eta meson, in particle physics, a strongly interacting boson
• A derogatory term used by the Japanese to refer to the Burakumin in the feudal era