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 Former IATA code for Transcarga 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 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