T7 or T-7 may refer to:
Biology Thoracic vertebra 7 Thoracic spinal nerve 7 T7 phage, a virus used in the study of biological systems T7 DNA Helicase, a hexameric motor protein T7 RNA polymerase, an RNA polymerase that catalyzes the formation of RNA
Transport Île-de-France tramway Line 7 T7 Olympic Park Line, a Sydney Trains service, Australia Twin Jet's IATA airline code T7 Bristol–Chepstow, a bus route in the United Kingdom T7 road (Tanzania), a road in Tanzania
Vehicles T-7 (rocket), China's first sounding rocket Boeing T-7 Red Hawk, an American advanced jet trainer aircraft Fuji T-7, a Japanese primary trainer aircraft Yugoslav torpedo boat T7 T7 Armored Car, a prototype vehicle for the US Army T7 Combat Car, a prototype vehicle for the US Army T-7 Navigator or Beechcraft Model 18, a trainer aircraft used by the United States armed forces T7, a model of the OS T1000 train of the Oslo Metro LSWR T7 class, an experimental 4-2-2-0 steam locomotive built in 1897 Boeing–Saab T-7 Red Hawk, an American–Swedish transonic advanced jet trainer Cooper T7, a British Formula Three racing car: see Cooper Mark III
Other uses 2C-T-7, a hallucinogenic phenethylamine 7T (disambiguation) T7, television station in Kosovo Tekken 7, a 2015 fighting game T-Seven or Judith Hildebrandt, a singer and former member of Mr. President A tornado intensity rating on the TORRO scale