Gmina Sieciechów is a rural gmina (administrative district) in Kozienice County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Sieciechów, which lies approximately 14 kilometres (9 mi) east of Kozienice and 91 km (57 mi) south-east of Warsaw.

The gmina covers an area of 61.26 square kilometres (23.7 sq mi), and as of 2006 its total population is 4,271.

Gmina Sieciechów contains the villages and settlements of Głusiec, Kępice, Łoje, Mozolice Duże, Mozolice Małe, Nagórnik, Nowe Słowiki, Opactwo, Sieciechów, Słowiki-Folwark, Stare Słowiki, Wola Klasztorna, Wólka Wojcieszkowska, Występ, Zajezierze and Zbyczyn.

Gmina Sieciechów is bordered by the town of Dęblin and by the gminas of Garbatka-Letnisko, Gniewoszów, Kozienice, Puławy and Stężyca.

• Polish official population figures 2006