How Many People Are Named Marcello Mastroianni?
There are approximately 1 people named Marcello Mastroianni living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Marcello with Census Bureau frequency data for the surname Mastroianni. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileMarcello
Last Name
View full profileMastroianni
Marcello: Popularity Over Time
Year-by-year SSA birth registrations for the first name Marcello. The peak year was 2024 with 224 births. The average person named Marcello today is 25 years old.
Ancestry of the Mastroianni Surname
Self-reported race and ethnicity breakdown for people with the surname Mastroianni, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Marcello" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Mastroianni" appears at a rate of 0.67 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 1 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Marcello Mastroianni: Questions and Answers
How many people are named Marcello Mastroianni?
We estimate approximately 1 people named Marcello Mastroianni are alive in the United States today. The first name Marcello is shared by 5,890 Americans, and the surname Mastroianni is shared by 2,250.
How rare is the name Marcello Mastroianni?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Marcello is rare and the surname Mastroianni is rare.
Is Marcello a male or female name?
Marcello is predominantly male, with 99.8% of bearers being male and 0.2% female. It peaked in popularity in 2024 and the average bearer today is 25 years old.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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