T-38

T-38 may refer to:

* T-38 Talon, a U.S. jet trainer
* T-38 tank, a Soviet light tank
* Carro T-38, an Italian light tank
* Slingsby T38 Grasshopper. a British unpowered training glider
* T.38, a standard for fax over IP
* Allison T38, an aeroengine