Dex
The boy's name Dex has been in the national records since 1952, with 658 births to its name. In 2025 it ranked 4,857th. About 650 Dexes are alive in the United States today, and half of them are over 10.
Popularity, 1880–2025
boys named Dex
By the numbers
- Total US births
- 658
- Estimated living today
- 650
- Median age today
- 10
- Peak year
- 2016
- Best rank
- 2,783rd
- Rank in 2025
- 4,857th
- First recorded
- 1952
How old the living Dexes are
born that year still alive today
Of the 658 babies given the name since 1952, about 650 are alive — 98 in every hundred. The dotted line is the median: half were born before 2015 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where Dex is most common
Relative to how many babies each state records, Dex is most concentrated in California (6.6×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2016
The most popular boys’ names the year Dex peaked:
Dex elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Dex | 54 | 2,730th |
| Belgium boys | Dex | 46 | 1,028th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Dex: rank by region
In 2025, Dex was given 5 times or more in 1 region of Belgium.
| Region | Spelling | Place | Children |
|---|---|---|---|
| Flanders | Dex | 806 | 6 |
In 2018, with the country taken in 11 areas rather than 3, Dex appears in the lists for Province of Antwerp (339th).
Each of these is the top of a list the statistics office cut off somewhere – Belgium below 5 children – and published nothing after. So a region missing here is one where the name fell outside what was published, not one where it went unused. Places are shared where names tie, and the further down a list a place is, the more names can share it.
Dex among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| the Netherlands boys | Dex | 2,644 | 2,796 |
| Finland boys | Dex | — | 6 |
| the Netherlands girls | Dex | — | 6 |
A count of people on a register – the Netherlands on 1 January 2018, Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Related names
Dex against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.