Tei may refer to: Sandister Tei, Ghanaian journalist and Wikimedian Tei (singer) (born 1983), Korean pop singer Tei, Bucharest, a neighborhood in Bucharest, Romania Tellurium monoiodide, a chemical compound with the formula TeI Towa Tei, an artist, record producer and DJ (b. 1965) TEI may refer to: Tarlac Electric Text Encoding Initiative, a consortium that develops standards for digital texts Technological Educational Institute, a type of tertiary education institute in Greece Terminal Endpoint Identifier (TEI), together with Service Access Point Identifier (SAPI) the unique identification of terminal equipment in the ISDN DSS1 standard Tertiary Education Institution in New Zealand Tezu Airport in India (IATA code) Total Economic Impact, a financial metric (see Application Portfolio Management) Trans Earth Injection, the procedure that a spacecraft performs to get back into the Earth's gravitational influence Triethylindium, a chemical compound Tusaş Engine Industries, a Turkish aircraft engine manufacturer