Friedrich Wilhelm Karl Ludwig Weber (2 April 1846 – 29 January 1922) was a German Protestant pastor and social reformer.

He worked in Iserlohn and Dellwig in the Ruhr, then in 1881 was appointed to the newly created third pastorate in Mönchengladbach, where the congregation was growing rapidly due to the expanding textile industry.

[1] As early as 1878 Weber was in contact with the Berlin court preacher and social reformer Adolf Stoecker (1835–1909).

Weber identified the problems caused by social dislocation, growing concentration of wealth in the hands of a few, and vulnerability of industry to fluctuating world markets.

[1] The first effective chapter of the International Abolitionist Federation (IAF) in Germany was organized in 1880 in Berlin, led by Gertrude Guillaume-Schack.

Conservatives were also unable to accept the outspoken role that women played in the IAF, feeling it was for men to take the initiative.

[3] In 1890 Kaiser Wilhelm II dismissed Chancellor Otto von Bismarck and proclaimed that the state would be sympathetic to the demands of workers.

[4] A campaign by members of the Congress in 1895–96 was directed at a number of pastors and professors who were accused of being too close to the Social Democrats.