Pappy is another name for father.
Pappy is the nickname of:
- Gregory Pappy Boyington (1912-1988), Flying Tiger and American fighter ace in World War II
- Fred Coe (1914-1979), American television producer and director
- Pappy Daily (1902-1987), American country music record producer and entrepreneur
- Paul Gunn (1899-1957), US World War II naval aviator
- John C. "Pappy" Herbst (1909-1946), American flying ace in World War II
- Duanes S. (Pappy) Larson (1916-2005), American World War II fighter pilot
- Howard Mason (born 1959), American drug trafficker
- W. Lee O'Daniel (1890-1969), Texas governor and senator
- Paul Rowe (Canadian football) (1917-1990), professional football player
- Risley C. Triche (born 1930), attorney and longtime member of the Louisiana House of Representatives
- Pappy Waldorf (1902-1981), American football player and coach
- Grover Washabaugh (c. 1893-1973), American college and high school football and basketball coach
- Pappy Wood (1888-1978), Canadian curler