Marcus Perpenna Vento or Perperna (died 72 BC) was a Roman statesman and general. He betrayed Quintus Sertorius, and was executed by Pompey the Great. Perpenna belonged to the populares faction, led by Gaius Marius and Lucius Cornelius Cinna. After Lucius Cornelius Sulla defeated the populares faction in Italy and became Dictator of Rome, Perpenna fled with a substantial sum of money and an army. He took refuge in Hispania (the Iberian Peninsula, comprising modern Spain and Portugal), where he was determined to wage war against Quintus Caecilius Metellus Pius on his own, despite the fact that Sertorius was already present in the province and was more or less ruling it.