TEU may refer to:Tertiary Education Union, an education trade union in New Zealand Treaty on European Union, formal name of the Maastricht Treaty (1992), one of the primary treaties of the EU Twenty-foot Equivalent Unit, a measure used for capacity in container transportation Mount Teu, highest point on the island of Merelava, Vanuatu Chú Tễu, a puppet in Vietnamese water puppetry Manapouri Aerodrome, New Zealand Soo language of Uganda Theux, Wallonia, Belgium, a municipality