Piotr Leszek Łukasiewicz (born 1974, in Sosnowiec) is a Polish diplomat, Colonel of the Polish Armed Forces, political scientist; ambassador to Afghanistan (2012–2014), chargé d'affaires to Ukraine (since 2024).

He has been studying also at the National Defence University of Warsaw and in Washington, D.C.[1] In 2018, he defended his doctoral thesis International coalition’s state-building efforts in Afghanistan in the years 2001–2014.

[2] Between 1995 and 2006 he served as a soldier, specializing in state security and counter-terrorism issues.

In October 2009, he became Plenipotentiary of the Minister of National Defence for the Polish Military Contingent in Afghanistan.

[4] Following his career in Afghanistan, he began working as an expert,[5] university teacher,[6] publicist.