Wilton Simpson "Bill" Farnsworth (June 7, 1885 – July 10, 1945) was an American sports writer, editor, and boxing promoter.

[3] In October 1908, Farnsworth established himself when he exposed a plot to bribe umpire Bill Klem in connection with a playoff game between the New York Giants and Chicago Cubs.

Farnsworth continued to write during his time as an editor, and his column was published under the title "Sidewalks of New York.

[7] Starting in 1923, Farnsworth teamed with Damon Runyon in promoting boxing bouts which raised more than $1 million for Hearst's Free Milk Fund for Babies.

[5][11] At the time of the 1910 United States census, Farnsworth was living in Manhattan with his wife Millicent and their two children, Marjorie and Wilton.

[14] Farnsworth suffered a stroke while attending a boxing match at Madison Square Garden on November 10, 1944.

The honorary pallbearers as his funeral included his longtime friend Damon Runyon, New York Mayor Jimmy Walker, boxing promoter Mike Jacobs, Pulitzer Prize winner Max Kase, boxing historian Nat Fleischer, and humorist Bugs Baer.