Defunct Historical Władysław Marcin Kosiniak-Kamysz (born 10 August 1981) is a Polish physician and politician.

His father, Andrzej Kosiniak-Kamysz, a doctor and politician, served as Minister of Health and Social Welfare under the first non-communist government of Tadeusz Mazowiecki where he waged a constant struggle to ensure that in a situation of permanent lack of resources, health care at a technological level began to catch up with the West.

He started his first job at the Department of Internal Diseases and Rural Medicine of the Collegium Medicum of the Jagiellonian University, which he held a medical internship there.

This was the first time during the 2000 presidential election when he supported Jarosław Kalinowski's organisation by issuing leaflets, hanging posters and collecting signatures for electoral lists.

Due to the poor election result and because he did not get a mandate, Janusz Piechociński resigned as party chairman, and Kosiniak-Kamysz succeeded him on 7 November 2015.

[13] In May 2024, Kosiniak-Kamysz attracted some criticism after revealing that he has had an emergency backpack at the ready since Russia's invasion of Ukraine in February 2022, with some saying this did not send a reassuring message about Poland's security.

"[14] In August 2024, he stated in an interview that Ukraine would not enter the European Union until the issue of the exhumation of the Polish victims of the Volhynian Genocide and their proper remembrance is resolved.

His words came as a reaction to Ukrainian Foreign Minister Dmytro Kuleba who suggested that this issue should be left for historians.