The Evangelical Social Congress (German: Evangelisch-Sozialer Kongress, ESK) was a social-reform movement of German evangelists founded in Whitsuntide in 1890.
Various groups were united in the Congress, although, in the end, the Congress failed to set forth a united programme of "Christian socialism" (more so because people like Friedrich Naumann and Adolf Stoecker would depart from the Congress).
The Congress never carried a large membership, and was only marginal compared to the Verein für Socialpolitik, an organization that currently still exists.