Marek Marian Belka (Polish pronunciation: [ˈmarɛk ˈbɛlka] ⓘ; born 9 January 1952 in Lódź) is a Polish professor of economics and politician who has served as Prime Minister of Poland and Finance Minister of Poland in two governments.

He published over 100 scientific papers devoted mainly to money theory and anti-inflation policy in developing countries.

From 2006 he served as the executive secretary of the UN Economic Commission for Europe (UNECE), and from November 2008 the director of the European Department International Monetary Fund.

In January 2011, he was elected for a three-year term (extended for another three years in 2014) to Steering Committee European Systemic Risk Board.

He also served as Adviser to the three successive Prime Ministers of Albania – Fatos Nano, Pandeli Majko and Ilir Meta – from 1997 to 2001.

[7] Belka was designated Prime Minister of Poland by President Aleksander Kwaśniewski on 29 May 2004 and sworn into office the next 8 August.

Belka joined the new liberal Democratic Party - demokraci.pl in May 2005, but failed to win a seat in Łódź in the 2005 elections.

[8] In 2007, Belka was proposed by Poland as managing director of the International Monetary Fund (IMF), but the European Union (EU) finally decided to advance former French minister Dominique Strauss-Kahn's candidacy.

In June 2014, the Polish magazine Wprost published a series of transcripts of secret recordings involving senior Polish government officials, including one in which Belka discussed the forthcoming 2015 election with the interior minister Bartłomiej Sienkiewicz.

The secret recordings were believed to have been made in one or more restaurants in the capital, Warsaw, and thought to date back as far as Summer 2013.

[14] In 2016, news media reported that Belka was considering taking up the role of the head of the European Bank for Reconstruction and Development (EBRD).

[15] He was also a member of the Eminent Persons Group on Global Financial Governance, which was established by the G20 Finance Ministers and Central Bank Governors for the period from 2017 to 2018.