In Christianity, an
unreached people group refers to an
ethnic group without an indigenous, self-propagating
Christian church movement. Any ethnic or
ethnolinguistic nation without enough Christians to evangelize the rest of the nation is an "unreached people group". It is a missiological term used by
Evangelical Christians. The
Lausanne Committee for World Evangelization defines a people group as "the largest group within which the
Gospel can spread as a church planting movement without encountering barriers of understanding or acceptance." "Nation" is sometimes used interchangeably for "people group". The term is sometimes applied to ethnic groups in which less than 2% of the population is Evangelical Christian.