Michael Kácha (6 January 1874 – 12 May 1940) was a Czech anarchist activist, journalist and publisher. He was a founder of the Czech Anarchist Federation and edited numerous publications during the 1900s. He then led the fundamentalist faction of the federation against Bohuslav Vrbenský's proposals to transform it into a political party, but his counter-proposals were voted down. He was arrested several times during During World War I. After the war, he returned to publishing and met the young writer Franz Kafka, who his left-wing magazine Červen. He published his own collected works in 1933,