Julian Wylie (1 August 1878 – 6 December 1934), originally Julian Ulrich Samuelson Metzenberg, was a British theatrical agent and producer. He began as an accountant and took an interest in entertainment through his brothers, Lauri Wylie and G. B. Samuelson. About 1910, he became the business manager and agent of David Devant, an illusionist, then took on other clients, and formed a partnership with James W. Tate. By the end of his life he was known as the 'King of Pantomime'.