Waldemar Jan Dubaniowski (born 23 February 1964 in Warsaw) is a Polish government official and diplomat; he served as an ambassador of Poland to Thailand, Laos, Cambodia, and Myanmar (2017–2023) and to Singapore (2009–2013); as a member of the National Broadcasting Council; a Chief of the Cabinet of the President of Poland and Secretary of State in the Chancellery of the President of the Republic of Poland.

In the first half of the 1990s, he worked as an assistant secretary at the Ministry of Industry and Commerce, then in the Office of Government Plenipotentiary for European Integration and Foreign Assistance and Economic Committee of Council of Ministers.

During 1996–1998, he served as the Group Director of the Cabinet of the President of the Republic of Poland.

[3] In the same year, he was appointed a member of the supervisory board of Polish State Railways.

In 2017, he was appointed an ambassador of the Republic of Poland to Thailand, Laos, Cambodia, and Myanmar, based in Bangkok.