| Jan Chryzostom Pieniążek | |
| House-Type: | Szlachta |
| Noble Family: | Pieniążek |
| Coa: | Odrowąż |
| Spouse-Type: | Consort |
| Birth Date: | Abt. 1630 |
| Death Date: | 1712 |
Jan Chryzostom Pieniążek (c. 1630 - 1712) was a Polish szlachcic.
Starost of Oświęcim since 1666 and voivode of Sieradz Voivodeship since 1683.
Marshal of the Sejm (zwyczajnego) August 17 - May 4, 1666 in Warsaw.