Benjamin Penhallow Shillaber (1814 - 1890) was an American humorist.
He was born in 1814 in Portsmouth, New Hampshire and began work in a printing-office in 1830. He moved to Boston in 1832, and then became an editor with the Boston Daily Post and Boston Saturday Evening Gazette. He then became editor of The Carpet-Bag humor magazine in the 1850s, one of his creations was Mrs. Partington, the American version of Mrs. Malaprop. He died in Chelsea, Massachusetts in 1890.