Sadykierz [saˈdɨkʲɛʂ] is a village in the administrative district of Gmina Ostrów, within Ropczyce-Sędziszów County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 11 kilometres (7 mi) north-west of Ostrów, 11 km (7 mi) north-west of Ropczyce, and 34 km (21 mi) west of the regional capital Rzeszów. The village dates back to the beginning of the 13th century.

In the region near Ocieka there occurred a battle against the Tatars. The Polish knights achieved a resounding victory. To commemorate this, an area close by became known as ‘Góra Tatarska’ (Tatar Hill). In 1531 the Grand Crown Hetman, Jan Amor Tarnowski led a Polish army against the Moldavian Prince (‘Hospodar’) Petru Rareş in the Battle of Obertyn. Despite being outnumbered four to one, the battle ended with a Polish victory, a complete Tatar surrender and the reconquest of Pokuttya or ‘Pokuttia’ (Ukrainian: Покуття, Romanian: Pocuţia, Polish: Pokucie). Tarnowski brought his Tatar prisoners-of-war back to Ocieka. These prisoners became the first occupants of a new settlement near Ocieka, called ‘Sadykierz’. The name ‘Sadykierz’ has distinct Tatar origins, just as do today's inhabitants of the same village.

The settlement of Sadykierz is located by a post-glacial lake, home to a rare species of white water-lily.