Christoph Friedrich Blumhardt (1842–1919) was a German Lutheran theologian and one of the founders of Christian socialism in Germany and Switzerland. He was a well-known preacher. In 1899 he announced his support for socialism and joined the Social Democratic Party of Germany; for this, he lost his position as minister. The next year, he was elected to the state parliament of Württemberg.
He was a significant influence on the theologians Karl Barth, Hermann Kutter, and Leonhard Ragaz, who were also Christian socialists.





