TCDD HT65000 is a series of twelve high-speed electric multiple units built by the Construcciones y Auxiliar de Ferrocarriles (CAF) of Spain for the Turkish State Railways (TCDD), The EMUs are used on the Turkish high-speed railway network and can reach a maximum commercial speed of 250 km/h.

They are being financed via a foreign loan over 22 years, with a seven-year grace period.

On 13 March 2009, the inaugural ceremony took place in Ankara; attended by President Abdullah Gül, Prime Minister Tayyip Erdoğan, and Minister of Transport Binali Yıldırım, who started the YHT service with one of these sets.

Subsequently, 2 additional sets were ordered with the same characteristics, reaching a total of twelve HT65000 trains.

Wi-Fi service is available with power inputs for laptops in business class.