Tun

TUN or tun may refer to:

Biology

 * Tun shells, large sea snails of the family Tonnidae
 * Tun, a tardigrade in its cryptobiotic state
 * Tun or Toon, common name for trees of the genus Toona

Places

 * Tun, Sweden, a locality in Västra Götaland County
 * Tūn or Toon, the former name of Ferdows, a city in Iran
 * Touro University Nevada, a private university in Henderson, Nevada, United States
 * Tunisia, ISO 3166-1 alpha-3 country code
 * Tunis–Carthage International Airport, (IATA airport code: TUN)
 * Old English meaning town. Often used as a suffix in its Romanised form (~ton) e.g.: Southamp ton

Measurement and time

 * Tun (Maya calendar), a unit of 360 days on the Maya calendar
 * Tun (unit), an antiquated measurement of liquid

Science and technology

 * TUN/TAP, a computer network device driver
 * TUN (product standard), Danish building materials numbering system

Other uses

 * Brilliance Tun, a 2014–2015 Chinese city car
 * Tun, an honorific Malay title
 * Tun, a type of cask (barrel) with a capacity of 252 wine gallons (954 litres)
 * Lauter tun, a vessel used in brewing
 * Mash tun, a vessel used in brewing