How old is someone named Mariann?
The average Mariann is 61 years old.
Half of all living Marianns are between 53 and 73.
When was Mariann popular?
Mariann was at its most popular in the late 1950s. Parents have been moving away from it for decades, and 8 babies were named Mariann in 2025.
Popular names of 1957 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1910s | 119 | 0 |
| 1920s | 309 | under 100 |
| 1930s | 661 | 150 |
| 1940s | 1,253 | 720 |
| 1950s | 1,939 | 1,500 |
| 1960s | 1,394 | 1,200 |
| 1970s | 501 | 470 |
| 1980s | 308 | 300 |
| 1990s | 218 | 220 |
| 2000s | 282 | 280 |
| 2010s | 141 | 140 |
| 2020s | 67 | under 100 |
How many Marianns are still alive?
About 5,100 Marianns are alive in the US today. That's 71% of the roughly 7,200 babies named Mariann since 1912.
Most Marianns ever born are still alive.
What generation is the name Mariann?
About half of living Marianns are Baby Boomers, born between 1946 and 1964.
Is Mariann an old name?
Yes. Mariann is older than 90 in 100 names on AgeByName.
Is Mariann a boy or girl name?
Almost entirely girls: over 99.9% of living Marianns are women.
Names the same age as Mariann
NAME TWIN
Mariann's name twin is Marianne. Of all 3,713 names on AgeByName, Marianne's age curve is the closest match to Mariann's: 93% alike.
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Questions about the name Mariann
How old is the average Mariann?
The average Mariann in the US is 61 years old. The median is 66, so half are older and half younger.
How many people are named Mariann?
About 5,100 Marianns are alive in the US today, out of roughly 7,200 babies given the name since 1912.
When was the name Mariann most popular?
In 1957, when about 340 baby girls were named Mariann.
Is Mariann a Boomer name?
Yes. About 53% of living Marianns are Baby Boomers, born between 1946 and 1964.
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