Pap (nickname) explained

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