The origin of surname Marino is the Italian region known as the Papal State.
Although people were originally known only by their first names, it became necessary to adopt a second name to identify due to population growth.

The most common type of family name found in the region was the surname that derives from the name of the father.
During the Middle Ages the Italians adopted the patronymic system for surnames.
Then in Italy during the Christian era, people often gave as a second name to their children the names of saints or biblical figures.
The nicknames as surnames usually reflected the physical characteristics of the first member of the lineage.
Italian surnames have a large number of forms in comparison with other European surnames
because they reflect regional variations and the many dialects of Italian.

The local names describe a region or place where they lived the first members of the lineage
The occupational surname, which are less common than other types of names, dating from the feudal age.
The occupational surname were not hereditary at first until the same occupations were hereditary.
The name derives from the name Marino Marino own which in turn derives from the Latin Marinus, meaning "sea".