| Janusz Maksymiuk | |
| Nationality: | Polish |
| Office: | member of Sejm 2005-2007 |
| Term Start: | 19 October 2005 |
| Term End: | 4 November 2007 |
| Party: | Self-Defence of the Republic of Poland |
| Birth Date: | 19 January 1947 |
| Birth Place: | Janówka, Poland |
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.