A type of high output fluorescent lamp with an external diameter of 5/8th of an inch

Thunderbird 5, one of the rescue vehicles in the series Thunderbirds

Palm, Inc.'s Tungsten T5 Palm OS-based PDA .

Telecinco, Spanish TV station

A kind of topological space, see Normal space

T5 spinal nerve

Trikke 5, 3 wheeled cambering vehicle

Turkmenistan Airlines, IATA airline designator

T5 - Tele5 - Polish TV channel of the Polcast Television

Fifth thoracic vertebra of the vertebral column, in human anatomy

The high-performance T5 engine used in T5 model Volvo cars.