| Jacek Protas | |
| Honorific-Suffix: | MEP |
| Office: | Member of the European Parliament for Podlaskie and Warmian–Masurian |
| Termstart: | 16 July 2024 |
| Office1: | Marshal of Warmian–Masurian Voivodeship |
| Termstart1: | 29 November 2006 |
| Term End1: | 12 December 2014 |
| Predecessor1: | Andrzej Ryński |
| Successor1: | Gustaw Marek Brzezin |
| Birth Date: | df=y 15 January 1964 |
| Party: | Civic Platform |
| Otherparty: | European People's Party |
Jacek Protas (born 15 January 1964) is a Polish politician of the Civic Platform who was elected member of the European Parliament in 2024.[1] He served as marshal of Warmian–Masurian Voivodeship from 2006 to 2014, and as a member of the Sejm from 2015 to 2024.[2]