T11

T11 may refer to:

• T11 line, a Stockholm Metro line running from Kungsträdgården to Akalla
• Île-de-France tramway Line 11 Express, one of the Tramways in Île-de-France (Paris, France)
• T11 subcommittee, a subcommittee of the International Committee for Information Technology Standards responsible for the Fibre Channel device interface
• T11 torpedo
• Antonov An-2, North Korea Air Force's Codename
• Autovía T-11, a highway in Catalonia connecting Reus and Tarragona
• DEC T-11, a microprocessor developed by Digital Equipment Corporation
• Marathon T.11, an aircraft
• Soyuz T-11, a 1984 space mission
• Type 11 Light Machine Gun, a Japanese light machine gun designed after the First World War
• the eleventh of the twelve Thoracic vertebrae
• the eleventh of the twelve Thoracic nerves
• T-11 Kansan, a trainer aircraft used by the United States armed forces between 1937 and 1970
• T-11 parachute - US army parachute system
• the Prussian T 11 steam locomotive
• a class of impairment and ability at Paralympic games
• an errant alternate name for T1-11 wood siding
• The highest tornado intensity rating on the TORRO scale