Hannibal is a surname. Notable people with the surname include:
Abram Petrovich Gannibal or Hannibal (1697–1781), African prince and Russian general Gary Hannibal (born 1943), American politician from Nebraska Ivan Gannibal (1735–1801), Russian general and Abram's son Heinrich Hannibal (1889–1971), German World War II SS officer Robin Hannibal (), Danish and musician and record producer Dr. Hannibal, the professional wrestling persona of Steven Gillespie