Sleeper is a surname. Notable people with the surname include:
Albert Sleeper (1862–1934), American politician from Michigan Charles Sleeper (1856–1924), American physician and politician from Maine David L. Sleeper (1856–1914), American politician from Ohio Henry Davis Sleeper (1878–1934), American antiquarian, collector, and decorator Jim Sleeper (born c. 1947), American author and journalist John Sherburne Sleeper (1794–1878), Massachusetts sailor, novelist, journalist, and politician Josiah Sleeper (18??–1946), American businessman in Pennsylvania, founder of Sleeper's College Martha Sleeper (1910–1983), film and Broadway actress Samantha Sleeper (born c. 1987), fashion designer Thomas Sleeper (1956–2022), American composer William True Sleeper (1819-1904), Congregationalist clergyman, educator, poet, and hymn-writer.