Julian Leonard Street (April 12, 1879–February 19, 1947)[1][2][3] was an American author, born in Chicago.

In 1915 Street published a book on Theodore Roosevelt, called The Most Interesting American.

He is credited with being the art critic who wrote that the painting exhibited at the 1913 Armory Show by Marcel Duchamp called Nude Descending a Staircase, resembled "an explosion in a shingle factory."

Street gained a measure of notoriety following a 1914 article in Collier's Weekly describing the red-light district along Myers Avenue in Cripple Creek.

The Cripple Creek city fathers, unamused, responded by renaming Myers Avenue to Julian Street.