The Jugurthine War was an armed conflict between the Roman Republic and King Jugurtha of Numidia, a kingdom on the north African coast approximating to modern Algeria. Jugurtha was the nephew and adopted son of Micipsa, king of Numidia, whom he succeeded on the throne, he had done so by overcoming his rivals through assassination, war, and bribery.

Jugurtha or Jugurthen was a king of Numidia. When the Numidian king Micipsa, who had adopted Jugurtha, died in 118 BC, Jugurtha and his two adoptive brothers, Hiempsal and Adherbal, succeeded him. Jugurtha arranged to have Hiempsal killed and, after a civil war, defeated and killed Adherbal in 112 BC.