T3

T3 or T-3 may refer to:

• Digital Signal 3, a type of telecommunications service, see T-carrier
• T3, The Think Tank is an independent advertising agency and the largest wholly woman owned advertising agency in the country, see T3 (The Think Tank)
• T3 is the IATA airline designator for a UK domestic airline Eastern Airways
• In topology, see regular space.
• Terminator 3: Rise of the Machines, a movie starring Arnold Schwarzenegger.
• The Tungsten T3, a device in the line of palmOne Tungsten handhelds
• Tatra T3, a tramcar manufactured by ČKD Tatra
• Tokyo Teleport Town, a planned city on reclaimed land in Tokyo Bay
• In Australia, T3 is used to refer to the third partial float of the formerly wholly government-owned Telstra telecommunications provider
• T3 magazine is a monthly magazine published by Future Publishing, focusing on new and hi-tech gadgets.
• Volkswagen Type 2 (T3), the third generation of the Volkswagen Bus
• Slingsby T-67 Firefly, a U.S. military training aircraft
• Fuji T-3, a Japanese trainer aircraft
• T3 is a type of transit lane in Australia
• Paris Tramway Line 3
• T3 (rapper), a Detroit rapper and founding member of Slum Village.
• A nickname for Tylenol 3 (paracetamol with codeine, or co-codamol), a painkiller

Medicine

• In endocrinology, T₃ is an abbreviation for triiodothyronine; see Thyroid hormone.
• T3 spinal nerve
• Third thoracic vertebra of the vertebral column, in human anatomy