| Gmina Ojrzeń | |
| Other Name: | Ojrzeń Commune |
| Settlement Type: | Gmina |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ciechanów |
| Area Total Km2: | 123.11 |
| Population Total: | 4384 |
| Population As Of: | 2013[1] |
| Population Density Km2: | auto |
| Coor Pinpoint: | Ojrzeń |
| Coordinates: | 52.7683°N 20.5447°W |
| Seat: | Ojrzeń |
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 13km (08miles) south-west of Ciechanów and 690NaN0 north-west of Warsaw.
The gmina covers an area of 123.11km2, and as of 2006 its total population is 4,393 (4,384 in 2013).
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.
Gmina Ojrzeń is bordered by the gminas of Ciechanów, Glinojeck, Sochocin and Sońsk.