William Horace Hotchkiss (September 7, 1864 – June 6, 1950) was an author of legal textbooks on bankruptcy law and Superintendent of Insurance for the State of New York.
In 1907, Charles Evans Hughes appointed him a Commissioner for the Promotion of Uniformity of Legislation in the United States.
With other Buffalo Republicans he made an inquiry regarding the operation of the primary election law of the State of New York and a report was drawn up which led to the introduction of a bill in the Legislature concerning the subject.
In 1899, in association with Elihu Root and Paul D. Cravath of New York, Hotchkiss prepared the Primary Election Law of 1899.
Hotchkiss died on June 6, 1950, and is buried in Kensico Cemetery, Valhalla, Westchester County, New York.