A World Bank classification that refers to countries with per-capita gross national income (GNI) between $1,036 and $12,615. It has these income categories that is being used for operation and analytical purposes.

The World Bank has three income classifications: low, middle, and high income. The institution use GNI per capita as the basis for these categories because it regard GNI as a wide measure, which is considered the sole best indicator of economic capability and progress. Low-income and middle-income nations are generally considered as developing countries.