In Roman law, status describes a person's legal status. The individual could be a Roman citizen, unlike foreigners; or he could be free, unlike slaves; or he could have a certain position in a Roman family either as head of the family, or as a lower member.

The pater familias, also written as paterfamilias, was the head of a Roman family. The pater familias was the oldest living male in a household, and could legally exercise autocratic authority over his extended family. The term is Latin for "father of the family" or the "owner of the family estate". The form is archaic in Latin, preserving the old genitive ending in -ās, whereas in classical Latin the normal first declension genitive singular ending was -ae. The pater familias always had to be a Roman citizen.