Gmina Tarłów is a rural gmina (administrative district) in Opatów County, Świętokrzyskie Voivodeship, in south-central Poland. Its seat is the village of Tarłów, which lies approximately 30 kilometres (19 mi) north-east of Opatów and 79 km (49 mi) east of the regional capital Kielce.
The gmina covers an area of 163.77 square kilometres (63.2 sq mi), and as of 2006 its total population is 5,753.