Claas Epp Jr. (September 21, 1838 – January 19, 1913) was a Russian Mennonite minister known for leading his followers into Central Asia where he predicted Christ would return in 1889.Epp was born in Fürstenwerder, Prussia. His family moved to the Trakt Mennonite settlement in the Russian province of Samara in 1853. He was married to Elisabeth Jantzen in 1862. Most of their twelve children died before reaching adulthood.