How old is someone named Denis?
The average Denis is 51 years old.
Half of all living Denises are between 28 and 72.
When was Denis popular?
Denis was at its most popular in the early 1950s. Parents have been moving away from it for decades, and 101 babies were named Denis in 2025.
Popular names of 1952 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 55 | 0 |
| 1910s | 300 | 0 |
| 1920s | 616 | 0 |
| 1930s | 1,655 | 250 |
| 1940s | 3,736 | 1,600 |
| 1950s | 5,012 | 3,300 |
| 1960s | 2,829 | 2,300 |
| 1970s | 1,470 | 1,300 |
| 1980s | 1,136 | 1,100 |
| 1990s | 1,216 | 1,200 |
| 2000s | 1,620 | 1,600 |
| 2010s | 1,157 | 1,100 |
| 2020s | 655 | 650 |
How many Denises are still alive?
About 14,000 Denises are alive in the US today. That's 67% of the roughly 22,000 babies named Denis since 1880.
Roughly half of all Denises ever born are still living.
What generation is the name Denis?
About two in five living Denises are Baby Boomers, born between 1946 and 1964.
Is Denis an old name?
Yes. Denis is older than 78 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Denis will be 45 in 2056, so its average age will actually fall, as the youngest Denises make up more of the total.
Is Denis a boy or girl name?
Mostly a boy's name: 94% of living Denises are men, and 6% are women.
The women average 34 and the men 52.
Names the same age as Denis
NAME TWIN
Denis's name twin is Alan. Of all 3,713 names on AgeByName, Alan's age curve is the closest match to Denis's: 92% alike.
Other spellings: Dennis (63)
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Questions about the name Denis
How old is the average Denis?
The average Denis in the US is 51 years old. The median is 58, so half are older and half younger.
How many people are named Denis?
About 14,000 Denises are alive in the US today, out of roughly 22,000 babies given the name since 1880.
When was the name Denis most popular?
In 1952, when about 630 baby boys were named Denis.
Is Denis a Boomer name?
Partly. Baby Boomers are the largest group, about 38% of living Denises, 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