Koray Aydın (born 5 December 1955) is a Turkish politician who has been serving as the Deputy Speaker of the Grand National Assembly since 9 July 2015.

Due to his father's job as a state official, he completed his primary and secondary education in different parts of Anatolia before graduating from Karadeniz Technical University Faculty of Mechanical Engineering in 1978.

Aydın became involved in politics at a young age, first becoming a member of the Executive Board of the Nationalist Movement Party (MHP) Trabzon Youth Wing.

After the political bans imposed in the 1980 Turkish coup d'état were lifted, Aydın was involved in the establishment of the Conservative Party.

With a total of 45 different cases filed against him, prosecutors pushed for a 216 years and 6 months jail sentence.

During the 10th MHP Ordinary Congress held on 4 November 2012, Aydın put his name forward to run for the party leadership against incumbent Devlet Bahçeli.