William Estabrook Chancellor (September 25, 1867 – February 12, 1963) was an American academic and writer.
An opponent of the 1920 Republican presidential candidate, Warren G.
Harding, Chancellor gained notoriety when he allegedly wrote a study of Harding's ancestry just prior to the election, asserting that Harding had an African-American ancestor.
Chancellor denied authorship, and it has never been proved.
Two years later, a biography of Harding was published under Chancellor's name, but Chancellor denied authorship of that as well.