The Nomenclature of Territorial Units for Statistics, (NUTS, for the French nomenclature d'unités territoriales statistiques), is a geocode standard for referencing the administrative divisions of countries for statistical purposes. The standard was developed by the European Union, and thus only covers the member states of the EU in detail (see also: Regions of the European Union). Eurostat also devised a hierarchy for the 10 countries that joined the EU in 2004, but these are subject to minor changes. The NUTS divisions do not necessarily correspond to administrative divisions within the country. The Nomenclature of Territorial Units for Statistics, comprising three levels, are instrumental in European Union's Structural Fund delivery mechanisms.

A NUTS code begins with a two-letter code referencing the country, which is identical to the ISO 3166-1 alpha-2 code (except UK instead of GB for the United Kingdom). The subdivision of the country is then referred to with one number. A second or third subdivision level is referred to with another number each. Each numbering starts with 1, as 0 is used for the upper level. In case the subdivision has more than 9 entities, capital letters are used to continue the numbering. In addition to the full three levels for the European Union countries, all countries have a NUTS code with a two-letter code for a continent and two numbers for the country, and for the USA, Canada and Australia the states, provinces, and territories are numbered separately. There are some anomalies: for example, Gibraltar is listed as being outside the EU with the code EO21; while French Guiana is listed twice, once in France as FR930 and once in South America as AS13. NUTS is thus in some extent similar to the ISO 3166-2 standard, as well as the FIPS standard of the United States.