Eurythmy is an expressive movement art originated by Rudolf Steiner in conjunction with his wife, Marie, in the early 20th century. Primarily a performance art, it is also used in education, especially in Waldorf schools, and – as part of anthroposophic medicine – for claimed therapeutic purposes.

Rudolf Joseph Lorenz Steiner was an Austrian occultist, social reformer, architect, esotericist, and claimed clairvoyant. Steiner gained initial recognition at the end of the nineteenth century as a literary critic and published works including The Philosophy of Freedom. At the beginning of the twentieth century he founded an esoteric spiritual movement, anthroposophy, with roots in German idealist philosophy and theosophy. His teachings are influenced by Christian Gnosticism. Many of his ideas are pseudoscientific. He was also prone to pseudohistory.