Marcin Bartłomiej Wilczek[1] (born 25 April 1967 in Warsaw)[2] is a Polish diplomat, Poland Ambassador to Turkey (2008–2012) and to Romania (2015–2019).

Marcin Wilczek graduated from the University of Warsaw Institute of Applied Linguistics (M.A., 1991) and the National School of Public Administration (1994).

In 1994, he joined the Ministry of Foreign Affairs, beginning as a desk officer responsible for Albania and Turkey.

After his return to Warsaw, between 2012 and 2015, he was the Head of Minister's Secretariat at the MFA.

[8] In October 2024, Wilczek became chargé d'affaires of Poland to Iran.