Gmina Ojrzeń is a rural gmina (administrative district) in Ciechanów County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Ojrzeń, which lies approximately 13 km south-west of Ciechanów and 69 km north-west of Warsaw. The gmina covers an area of 123.11 km2, and as of 2006 its total population is 4,393 (4,384 in 2013).

Villages

Gmina Ojrzeń contains the villages and settlements of Baraniec, Brodzięcin, Bronisławie, Dąbrowa, Gostomin, Grabówiec, Halinin, Kałki, Kicin, Kownaty-Borowe, Kraszewo, Łebki Wielkie, Lipówiec, Luberadz, Luberadzyk, Młock, Młock-Kopacze, Nowa Wieś, Obrąb, Ojrzeń, Osada-Wola, Przyrowa, Radziwie, Rzeszotko, Skarżynek, Trzpioły, Wojtkowa Wieś, Wola Wodzyńska, Zielona and Żochy.

Neighbouring gminas

Gmina Ojrzeń is bordered by the gminas of Ciechanów, Glinojeck, Sochocin and Sońsk.