Rzepin Pierwszy is a village in the administrative district of Gmina Pawłów, within Starachowice County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 3 km (2 mi) north-west of Pawłów, 8 km (5 mi) south of Starachowice, and 35 km (22 mi) east of the regional capital Kielce.