| Aleksander Koniecpolski | |
| Coa: | Pobóg |
| More: | no |
| Spouse: | Anna Sroczycka |
| Spouse-Type: | Wife |
| Issue: | Stanisław Koniecpolski Krzysztof Koniecpolski Remigiush Koniecpolski Jan Koniecpolski Przedbor Koniecpolski |
| Noble Family: | Koniecpolski |
| House-Type: | Szlachta |
| Father: | Stanisław Przedbór Koniecpolski |
| Mother: | Elżbieta Ligozianka |
| Birth Date: | 1555 |
| Death Date: | 1609 |
Aleksander Koniecpolski (1555–1609) was a voivode (palatine) of Sieradz, a staunch supporter of king Sigismund III Vasa of the House of Vasa.
He was the son of Stanisław Przedbór Koniecpolski and Elżbieta Ligzianka (relative of hetman Jan Tarnowski). His wife was Anna Sroczycka, daughter of Stanisław Sroczycki, voivode of Kamieniec. This marriage brought into the Koniecpolscy family large estates at Podolia.
He had six children: