How old is someone named Mariana?
The average Mariana is 20 years old.
Half of all living Marianas are between 10 and 26.
When was Mariana popular?
Mariana is a modern favorite: it climbed through the 2000s and hit its high in 2005. 1,192 babies got the name in 2025.
Popular names of 2005 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 80 | 0 |
| 1910s | 271 | 0 |
| 1920s | 412 | under 100 |
| 1930s | 322 | under 100 |
| 1940s | 306 | 170 |
| 1950s | 314 | 250 |
| 1960s | 486 | 430 |
| 1970s | 1,025 | 970 |
| 1980s | 2,318 | 2,200 |
| 1990s | 6,147 | 6,000 |
| 2000s | 15,862 | 16,000 |
| 2010s | 11,013 | 11,000 |
| 2020s | 7,371 | 7,300 |
How many Marianas are still alive?
About 44,000 Marianas are alive in the US today. That's 96% of the roughly 46,000 babies named Mariana since 1888.
Nearly every Mariana ever born is still alive, because almost all of them are young.
What generation is the name Mariana?
About half of living Marianas are in Gen Z, born between 1997 and 2012.
- Boomer 1%
- Gen X 3%
- Millennial 13%
- Gen Z 49%
- Gen Alpha 34%
Is Mariana an old name?
Not really. Mariana is younger than 71 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Mariana will be 33 in 2056, so the name is aging slowly.
Is Mariana a boy or girl name?
Almost entirely girls: 99.8% of living Marianas are women.
Names the same age as Mariana
NAME TWIN
Mariana's name twin is Isai. Of all 3,713 names on AgeByName, Isai's age curve is the closest match to Mariana's: 92% alike.
Other spellings: Marianna (29)
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Questions about the name Mariana
How old is the average Mariana?
The average Mariana in the US is 20 years old. The median is 19, so half are older and half younger.
How many people are named Mariana?
About 44,000 Marianas are alive in the US today, out of roughly 46,000 babies given the name since 1888.
When was the name Mariana most popular?
In 2005, when about 2,100 baby girls were named Mariana.
Is Mariana a Gen Z name?
Partly. Gen Z are the largest group, about 49% of living Marianas, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this