Szelejewo Pierwsze [ʂɛlɛˈjɛvɔ ˈpjɛrfʂɛ] is a village in the administrative district of Gmina Piaski, within Gostyń County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 7 kilometres (4 mi) east of Piaski, 11 km (7 mi) east of Gostyń, and 62 km (39 mi) south of the regional capital Poznań.