William Walker Atkinson (December 5, 1862 – November 22, 1932) was an attorney, merchant, publisher, and author, as well as an occultist and an American pioneer of the New Thought movement. He is the author of the pseudonymous works attributed to Theron Q. Dumont and Yogi Ramacharaka.

He wrote an estimated 100 books, all in the last 30 years of his life. He was mentioned in past editions of Who’s Who in America, in Religious Leaders of America, and in similar publications. His works have remained in print more or less continuously since 1900.

William Walker Atkinson was born in Baltimore, Maryland, on December 5, 1862, to Emma and William Atkinson. He began his working life as a grocer at 15 years old. He married Margret Foster Black of Beverly, New Jersey, in October 1889, and they had two children. Their first child died young. The second later married and had two daughters.