Marcin Wojciech Libicki (born 2 February 1939 in Poznań) is a Polish politician, former member of the Polish parliament (Sejm), elected for the Poznań constituency. He is one of the leaders of the Law and Justice party. On 13 June 2004, he was elected as a Member of the European Parliament (MEP), and when the Parliament convened he was elected Chair of its Committee on Petitions. He is a member of the Sovereign Military Order of Malta, also the alumnus of Adam Mickiewicz High School in Poznań. He is the father of Jan Filip Libicki, a member of Sejm.