NameCensus.

UK name, mostly girls

Denni

A diminutive form of the name Dennis, derived from the French "Denis", meaning "follower of Dionysus".

For 2026, the newest official UK baby-name figures on this page are from 2022. That release is the current official benchmark rather than a forecast.

Also recorded as a boys' name in the UK, with 39 boys.

Denni is mostly registered for girls in the UK records. People looking for Denni popularity in 2026 should use the latest official release, which is 2022 in this profile. In that release it ranked #3970, with 5 babies registered with the name. Its strongest year in the published records was 2006, with 12 births.

This profile covers 107 England and Wales registrations across 19 recorded years from 1996 to 2022. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

The latest count is about 42% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 106 living people in the UK are called Denni. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2023 or 2026.

Key insights

  • Denni ranked #3970 for girls in England and Wales in 2022, with 5 registrations.
  • The name peaked in 2006, when 12 girls were registered as Denni.
  • Denni is also recorded for boys, but the girls side is the larger UK variant in these records.
  • About 106 living people in the UK are estimated to have Denni as a first name, after adjusting past birth registrations with ONS life tables.
  • Across the England and Wales records shown here, 73.3% of Denni registrations are for girls.

Latest rank (E&W)

#3970

2022

Births in 2022

5

Latest year

Peak year

2006

12 births

Estimated living

106

2026

Gender

Boy and girl registrations for Denni

In England and Wales birth records, Denni has been registered for both boys and girls. Across the years shown here, 26.7% of registrations are for boys and 73.3% are for girls.

These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.

27% boys
73% girls
Boys39 (26.7%)Girls107 (73.3%)

Denni registered for boys

  • Ranked #4,270 in 2024
  • 4 boys registered in 2024
  • Peak: 2023 (11 births)

Denni registered for girls

  • Ranked #3,970 in 2022
  • 5 girls registered in 2022
  • Peak: 2006 (12 births)

Meaning

What does Denni mean?

The name Denni is believed to have originated from the Germanic languages, with roots dating back to the Middle Ages. It is a variant of the name Dennis, which is derived from the Greek name Dionysius, meaning "belonging to Dionysus," the ancient Greek god of wine, fertility, and revelry.

While the exact origin of the name Denni is unclear, it is thought to have emerged as a simplified version of Dennis, possibly influenced by regional dialects or linguistic evolutions over time. The earliest recorded instances of the name Denni can be traced back to the 13th century, particularly in regions of present-day Germany and the Netherlands.

One of the earliest known bearers of the name Denni was Denni von Arnsberg, a German nobleman and military commander who lived in the late 12th and early 13th centuries. He was renowned for his leadership during the Crusades and his service under the Holy Roman Emperor Frederick II.

In the 14th century, a prominent figure named Denni van der Merwe was a influential merchant and landowner in the Netherlands. His legacy is documented in various trade records and land deeds from that era, providing insights into the commercial and social dynamics of the time.

During the Renaissance period, Denni Boccaccio, an Italian artist and sculptor from Florence, gained recognition for his intricate marble carvings and contributions to the artistic movement of the 15th century. His works can still be admired in various churches and museums across Italy.

In the 17th century, Denni Descartes, a French philosopher and mathematician, made significant contributions to the fields of geometry and metaphysics. His famous philosophical statement, "I think, therefore I am," remains a cornerstone of modern Western philosophy.

Another notable figure was Denni Curie, a Polish-born physicist and chemist who lived in the late 19th and early 20th centuries. She was a pioneer in the study of radioactivity and the first woman to win a Nobel Prize, which she shared with her husband, Pierre Curie, and Henri Becquerel in 1903.

Sourced from namecensus.com.

Popularity

Denni over time

The chart below compares boys and girls registered as Denni in England and Wales, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Denni, the clearest high point is 2006. The latest England and Wales figure is 5 births in 2022, compared with 12 at the peak.

Babies born per year

BoysGirls
036912199620102024

Decades

Denni by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Denni was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #3970 5 1
2010s #5078 15 4
2000s #3144 62 10
1990s #2545 25 4

Related

Names similar to Denni

FAQ

Denni: questions and answers

How popular is the name Denni in the UK right now?

In 2022, Denni was ranked #3970 for girls in England and Wales, with 5 births registered.

When was Denni most popular?

The peak year on record was 2006, with 12 babies registered as Denni in England and Wales.

What is the meaning and origin of Denni?

A diminutive form of the name Dennis, derived from the French "Denis", meaning "follower of Dionysus".

How many people are called Denni in the UK?

A total of 107 babies have been registered as Denni across the 19 years of ONS England & Wales records shown here.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.