| Jan Szyszko | |
| Nationality: | Polish |
| Office: | Member of the Sejm |
| Term Start: | 25 September 2005 |
| Term End: | 9 October 2019 |
| Office3: | Minister of Environment |
| Term Start3: | 16 November 2015 |
| Term End3: | 9 January 2018 |
| Primeminister3: | Beata Szydło Mateusz Morawiecki |
| Term Start4: | 31 October 2005 |
| Term End4: | 16 November 2007 |
| Primeminister4: | Kazimierz Marcinkiewicz Jarosław Kaczyński |
| Term Start5: | 31 October 1997 |
| Term End5: | 19 October 1999 |
| Primeminister5: | Jerzy Buzek |
| Constituency: | 20 – Warsaw II |
| Party: | Law and Justice |
| Birth Name: | Jan Feliks Szyszko |
| Birth Date: | 14 April 1944 |
| Birth Place: | Stara Miłosna, Warsaw, Poland |
| Alma Mater: | Warsaw University of Life Sciences |
(19 April 1944 – 9 October 2019) was a Polish forester, university teacher (professor of forestry) and politician who served as Minister of Environment in the cabinets of Jerzy Buzek (1997–1999), Kazimierz Marcinkiewicz (2005–2007), Jarosław Kaczyński (2007), Beata Szydło (2015–2017) and Mateusz Morawiecki (2017–2018).
He was elected to the Sejm on 25 September 2005, receiving 7,042 votes in the 20th Warsaw district, as a candidate on the Law and Justice list. He served in four consecutive parliamentary terms, having won re-election in 2007, 2011 and 2015.
The Pontifical Academy of Sciences recognized him with the 2008 Ettore Majorana Award.[1] He was an honorary citizen of Krościenko nad Dunajcem and of Wieluń.