Mehmet Naki Yücekök also known as Nakiyüddin Yücekök, Nakiyüddin Bey (1866; Nasliç (Neapoli) - 2 February 1947; Istanbul) was a Turkish career officer, politician and secularist. He served as a military officer of the Ottoman Army and as a politician of the Republic of Turkey. He was a French teacher of Mustafa Kemal at the Salonica Military School.