Peter Sheaf Hersey Newell (March 5, 1862 – January 15, 1924) was an American artist and writer.

A native of McDonough County, Illinois, Newell built a reputation in the 1880s and 1890s for his humorous drawings and poems, which appeared in Harper's Weekly, Harper's Bazaar, Scribner's Magazine, The Saturday Evening Post, Judge, and other publications.

[2] Newell often illustrated the works of other authors, such as Mark Twain, Stephen Crane, John Kendrick Bangs, and Lewis Carroll.

He also created a comic strip serial, The Naps of Polly Sleepyhead, which debuted in the New York Herald in 1905.

[2] Newell's great-granddaughter, Laura Lydecker, was also an artist and children's book illustrator.