Julian Leonard Street (1879–1947) was an American author, born in Chicago. He was a reporter on the New York Mail and Express (later Evening Mail) in 1899 and had charge of its dramatic department in 1900-01. His writings, characterized by a rather obvious but yet a genuine sense of humor, include:
He made contributions to magazines. In 1915 he 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 moved to Princeton in the 1920s. The university houses his manuscript collection and a library is named after him there.