Janusz Roman Maksymiuk (born 19 January 1947 in Janówka) is a Polish politician. He was elected to the Sejm on 25 September 2005, getting 7,384 votes in 22 Krosno district as a candidate from the Samoobrona Rzeczpospolitej Polskiej list.
He was also a member of Sejm 1991-1993 and Sejm 1993-1997.