T9

T9 may refer to:

Military

 * M4 cannon, the 37 mm Automatic Gun, known as the T9 during development
 * M22 Locust, an airborne light tank, known as the T9 during development
 * German torpedo boat T9

People

 * Tech N9ne (born 1971), hip hop artist
 * Fernando Torres (born 1984), former footballer nicknamed "T9"

Physiology

 * Thoracic vertebra 9
 * Thoracic spinal nerve 9

Products

 * Sony Cyber-shot DSC-T9, a digital camera
 * Yepp, the Samsung YP-T9 MP3 player
 * T-9, a Ford manual transmission also known as Type 9

Transportation

 * Tramway T9, a tram line in Île-de-France
 * Former IATA code for TransMeridian Airlines
 * Northern Line (Sydney), a rail service numbered T9
 * LSWR T9 class, a British locomotive class
 * Prussian T 9, a German steam locomotive
 * Van Hool T9, a line of touring buses
 * T9 road (Tanzania), a road in Tanzania

Other uses

 * T9 (predictive text), an input technology for mobile phones
 * T9, a fluorescent lamp tube format designation
 * A tornado intensity rating on the TORRO scale