Mavi Ateş Kardemir Karabükspor
Turkey · Founded: 1969
Kardemir Karabükspor was a Turkish football club from the steel town of Karabük, formed in 1969 by a merger of Karabük Gençlikspor and Demir Çelik Spor. It was named after Kardemir, the local iron and steel works, and its nickname, Mavi Ateş (Blue Flame), came from the blue flames of the factory chimneys. It played at the Dr. Necmettin Şeyhoğlu Stadium.
Karabükspor had spells in the Süper Lig in the 1990s and returned to the top flight in 2010 after eleven years away. In the 2014–15 UEFA Europa League it knocked out Rosenborg on away goals in the third qualifying round. It then beat Saint-Étienne 1–0 at home in the play-off round, but lost the return leg 1–0 and went out on penalties.
After relegation from the Süper Lig in 2018, the club collapsed financially and suffered several more relegations in a row. In 2022 it could not field a team and was dissolved. A successor club, Karabük İdman Yurdu, now uses its colours and plays at the same stadium.