Marszałki [marˈʂau̯ki] is a village in the administrative district of Gmina Grabów nad Prosną, within Ostrzeszów County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) south-west of Grabów nad Prosną, 10 km (6 mi) north-east of Ostrzeszów, and 132 km (82 mi) south-east of the regional capital Poznań.

The village has an approximate population of 700.