Arkadiusz Mularczyk (born 4 February 1971 in Racibórz) is a Polish politician.

He was elected to the Sejm on 25 September 2005, getting 9,566 votes in 14 Nowy Sącz district as a candidate from the Law and Justice list.

On 4 November 2011 he, along with 15 other supporters of the dismissed PiS MEP Zbigniew Ziobro,[1] left Law and Justice on ideological grounds to form a breakaway group, United Poland.

[2] • Born 4/2/1971 in Racibórz, Poland • Graduated with a Masters in Law from the Jagiellonian University, Kraków in 1996.

In the same year, he also became the chairman of the delegation of the Polish Parliament to the Parliamentary Assembly of the Council of Europe, and in 2021 he became the vice-chairman of the Parliamentary Assembly of the Council of Europe and the secretary of State Ministry of Foreign Affairs.