List of countries by ethnic groups

The following article lists sovereign states, dependent territories and some quasi-states according to their proportional ethnic population composition. Ethnic classifications vary from country to country and are therefore not comparable across countries. While some countries make classifications based on broad ancestry groups or characteristics such as skin color, other countries use various ethnic, cultural, linguistic, or religious factors for classification. Ethnic groups may be subdivided into subgroups, which may or may not be identified as independent ethnic groups in their own right, depending on the source.

This keyword could refer to multiple things. Here are some suggestions: