Quintus Fabius Ambustus

Quintus Fabius Ambustus may refer to several ancient Romans, including:


 * Quintus Fabius Ambustus, consul 412 BC; see Fabius Ambustus
 * Quintus Fabius Ambustus (tribune), consular tribune in 390 BCE
 * Quintus Fabius Ambustus (dictator), dictator in 321 BCE