Quaestor (disambiguation)
The term Quaestor can refer to any number of officials:

 Quaestor, a magistrate in the Roman Republic responsible for civil and military finances
 Quaestor sacri palatii, head legal official of the late Roman/early Byzantine empires, established by Constantine the Great
 Quaestor exercitus, 6th-century Byzantine military/administrative post established by Emperor Justinian
 Quaestor (University of St Andrews), the Finance Director and Treasurer
 Quaestor (European Parliament), officials elected to look after Members of the European Parliament
 Questore, a rank of the Italian Police force
 Chestor, the Romanian National Police rank equivalent to the rank of Police Commissioner