Pap is a nickname of:
Benjamin "Pap" Singleton (1809–1892), African-American civil rights activist and businessman George Henry Thomas (1816–1870), Union general during the American Civil War Pap Dean (Preston Allen Dean; 1915–2011), American cartoonist Pap Finn, the father of Huckleberry Finn in Mark Twain novels Pap, a character in the 2021 play Fat Ham