T30 may refer to:

Aviation McKinley Field, in Frio County, Texas, United States Slingsby T.30 Prefect, a British glider Terzi T30 Katana, an Italian aerobatic monoplane

Other uses

T.30 (ITU-T recommendation), a fax protocol Cooper T30, a British racing car

IBM ThinkPad T30, a laptop computer Tanabe Station, in Higashisumiyoshi-ku, Osaka, Japan T-30 Citycruiser, a Canadian bus T30 Heavy Tank, an American tank project T30 Howitzer Motor Carriage, an American self-propelled gun