Christian Daa Larson (1874 – 1954) was an American New Thought leader and teacher, as well as a prolific author of metaphysical and New Thought books. He is credited by Horatio Dresser as being a founder in the New Thought movement. Many of Larson's books remain in print today, more than 100 years after they were first published, and his writings influenced notable New Thought authors and leaders, including Religious Science founder Ernest Holmes.