Irving Walter Phillips (November 29, 1904 – October 28, 2000) was a noted American cartoonist, playwright, television scriptwriter, author, illustrator and educator. He is best remembered for his daily newspaper comic panel The Strange World of Mr. Mum. Phillips scripted for motion pictures, including Song of the Open Road (1944), which featured the film debut of Jane Powell. Phillips also penned the Powell vehicle Delightfully Dangerous in 1945.