T8

T8 or T-8 may refer to the following:

Measurement

 * T8, a Torx screwhead size
 * T8, a 1 inch fluorescent lamp size
 * A tornado intensity rating on the TORRO scale

Biology

 * The 8th thoracic vertebra
 * The T8 spinal nerve

Transportation

 * Trikke8, a scooter-like vehicle
 * An OS T1000 train class model, used on the Oslo Metro
 * Airport & South Line, a rail service in Sydney numbered T8
 * Île-de-France tramway Line 8, one of the Tramways in Île-de-France
 * T8 road (Tanzania), a road in Tanzania

Other

 * One of the Hong Kong Tropical Cyclone Warning Signals used by the Hong Kong Observatory
 * Tekken 8, a 2024 video game
 * The International Telecommunication Union prefix for Palau
 * YouTube Channel based on The Lion King