The Joshua Project is an evangelical Christian organization based in Colorado Springs, United States, which seeks to coordinate the work of missionary organizations to track the ethnic groups of the world with the fewest followers of evangelical Christianity.

To do so, it maintains ethnologic data to support Christian missions.

[5] The goal of the project is to bring definition to the unfinished task of the Great Commission by providing accurate, regularly updated ethnic people group information critical for understanding the scope of the work required.

[5] Focusing on ethnicity, the project maintains a database of "unreached peoples" listed by country and language.

These are further divided into 16,350 peoples-by-countries, counting national minorities individually for each of 236 countries, of which 6,642 are classified as "unreached peoples".