John Brisben Walker (1847-1931) was a United States magazine publisher and automobile entrepreneur, in later years a resident of Jefferson County, Colorado.
In 1889 he purchased Cosmopolitan magazine, leading it to marked growth before selling it to William Randolph Hearst in 1905. The 1905 sale price has been variously reported as $400,000 and $1,000,000. He was a co-founder of the Locomobile company and led it through its early successes.
