T13 or T-13 may refer to:

Aviation Slingsby T.13 Petrel, a British glider Vultee BT-13A Valiant, an American military trainer

Rail and transit Lines Île-de-France tramway Line 13 Express Line 13, part of the Red Line (Stockholm Metro), in Sweden

Locomotives Prussian T 13, a steam locomotive

Stations Karasuma Oike Station, Kyoto, Japan Kawana Station (Nagoya), Aichi Prefecture, Japan Kiba Station, Tokyo, Japan Nibu Station, Higashikagawa, Kagawa Prefecture, Japan Shiroishi Station (Sapporo Municipal Subway), Hokkaido, Japan Taishibashi-Imaichi Station, Osaka, Japan

Weapons and armor BEANO T-13 grenade, an American hand grenade T-13 tank destroyer, a Belgian tank destroyer

Other uses T13 (classification), a disability sport classification Estonian national road 13 T13 road (Tanzania)

Patau syndrome, also known as trisomy 13 Port Sorell language Soyuz T-13, a crewed spaceflight Teletrece, also known as T13, a Chilean news programme