Herennius

The name Herennius may refer to:


 * Herennius Pontius (fl. c. 340 BC), Samnite statesman, father of Gaius Pontius
 * Marcus Herennius (consul 93 BC)
 * Gaius Herennius (otherwise unknown), addressee of the book Rhetorica ad Herennium
 * Marcus Herennius Picens (consul 34 BC)
 * Herennius Senecio (died c. 90), Roman writer, biographer of Helvidius Priscus
 * Herennius Philo, also known as Philo of Byblos (c. 64–141), scholar
 * Lucius Herennius Saturninus, suffect consul in AD 100
 * Publius Herennius Dexippus (c. 210–273), the Greek historian most often known as Dexippus
 * Herennius (fl. c. 240), a Neoplatonic philosopher; see Ammonius Saccas
 * Herennius Modestinus (fl. c. 250), Roman jurist
 * Herennius Etruscus (c. 227–251), Roman emperor