Ou Chrov is a district (srok) located in the western part of Banteay Meanchey province in north-western Cambodia. It serves as one of the westernmost districts of the province and shares a border with Thailand.
The district capital is Poipet, which is situated approximately 48.5 kilometres due west of Sisophon, the provincial capital, by road. Poipet is notable for hosting a popular international border crossing characterized by numerous casinos.