TKT

TKT could refer to:


 * TKT (ELT), or Teaching Knowledge Test, a credential
 * The Killing Tree, band from Chicago, Illinois, US
 * Transketolase, an enzyme
 * Twisted Kaiju Theater, a webcomic
 * Tak Airport, Thailand, IATA code
 * Kathoriya Tharu, a Tharu languages variant, ISO 639-3 code