ET or et may refer to:
Ethiopia (; Amharic: ኢትዮጵያ, ʾĪtyōṗṗyā, listen , Tigrinya: ኢትዮጵያ, Oromo: Itoophiyaa, Somali: Itoobiya), officially the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ, yeʾĪtiyoṗṗya Fēdēralawī Dēmokirasīyawī Rīpebilīk, listen ), is a country in the northeastern part of Africa, known as the Horn of Africa.
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is a chemical compound, a simple alcohol with the chemical formula C2H6O.
An ethnic group or ethnicity is a category of people who identify with each other, usually on the basis of a presumed common genealogy or ancestry or on similarities such as common language or dialect, history, society, culture or nation.
The Etruscan civilization () is the modern name given to a civilization of ancient Italy in the area corresponding roughly to Tuscany, south of the Arno river, western Umbria, northern and central Lazio, with offshoots also to the north in the Po Valley, in the current Emilia-Romagna, south-eastern Lombardy and southern Veneto, and to the south, in some areas of Campania.
Ethereum is an open source, public, blockchain-based distributed computing platform and operating system featuring smart contract (scripting) functionality.
Etihad Airways (Arabic: شَرِكَة ٱلْاِتِّحَاد لِلطَّيْرَان, romanized: sharikat al-ittiḥād li-ṭ-ṭayarān) is the second-largest airline in the United Arab Emirates (after Emirates).
Ethylenediaminetetraacetic acid (EDTA), also known by several other names, is a chemical used for both industrial and medical purposes.