Izobilnensky District () is an administrative district (raion), one of the twenty-six in Stavropol Krai, Russia. Municipally, it is incorporated as Izobilnensky Municipal District. It is located in the west of the krai. The area of the district is . Its administrative center is the town of Izobilny. Population: 101,980 (2002 Census); 87,036 (1989 Census). The population of Izobilny accounts for 39.1% of the district's total population.