Vetus may refer to:
People Camerinus Antistius Vetus, Roman senator Gaius Antistius Vetus, multiple people Lucius Antistius Vetus (consul 55), Roman senator Lucius Calventius Sextus Carminius Vetus, Roman senator Lucius Calventius Vetus Carminius, Roman senator
Species Enoclerus vetus, species of checkered beetle Maiestas vetus, species of bug Phyllops vetus, extinct relative of the Cuban fig-eating bat Tentax vetus, species of moth
Religion Vetus Latina, translations of the Bible Vetus Latina manuscripts, copies of the Bible Synodicon Vetus, book about early Christianity Vetus Testamentum, academic journal Basilica vetus, church in Italy Capitolium Vetus, temple in Rome
Other uses Quadrans Vetus, medieval astronomical instrument Vagus Vetus, album Aqua Anio Vetus, Roman aqueduct Aboa Vetus & Ars Nova, museum in Finland Ars Vetus, multiple concepts