NameCensus.

UK girl's name

Dilys

True and faithful one of Welsh origin.

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Dilys is a girl's name in the UK records. People looking for Dilys popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #2115, with 13 babies registered with the name. Its strongest year in the published records was 2024, with 13 births.

This profile covers 168 England and Wales registrations across 24 recorded years from 1998 to 2024. 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.

Dilys is at its recorded peak in the England and Wales series.

We estimate that about 167 living people in the UK are called Dilys. 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 2025 or 2026.

Key insights

  • Dilys ranked #2115 for girls in England and Wales in 2024, with 13 registrations.
  • The name peaked in 2024, when 13 girls were registered as Dilys.
  • About 167 living people in the UK are estimated to have Dilys as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#2115

2024

Births in 2024

13

Latest year

Peak year

2024

13 births

Estimated living

167

2026

Meaning

What does Dilys mean?

The given name Dilys originates from the Welsh language. It is derived from the Welsh word "didwyll," which means "true," "sincere," or "honest." The name has been in use since the Middle Ages in Wales and other parts of Britain.

In its earliest recorded usage, the name appears in medieval Welsh literature and historical records. It was a popular name among the Welsh nobility and gentry during this time, often given to daughters as a reflection of their desired virtues.

One of the earliest documented individuals with the name Dilys was Dilys Vychan, a Welsh noblewoman who lived in the 14th century. She was the daughter of Rhys ap Gruffydd, a prominent Welsh landowner and military leader.

Another notable historical figure with the name Dilys was Dilys Cadwalader (c. 1510-1578), a Welsh heiress and landowner. She inherited significant estates in Denbighshire and Flintshire, and her descendants played an influential role in the region.

In the 17th century, Dilys Penrhyn (1621-1698) was a Welsh writer and poet. She is known for her collection of religious poems and her contributions to the Welsh literary tradition.

Moving into the 18th century, Dilys Wynn (1701-1779) was a Welsh philanthropist and patron of the arts. She was instrumental in supporting Welsh culture and education, founding several schools and endowing scholarships.

In more recent times, Dilys Davies (1909-1986) was a Welsh actress and singer. She had a successful career on stage and in films, appearing in productions in both Welsh and English.

While the name Dilys has its roots in Wales, it has also been adopted in other parts of Britain and beyond, particularly in areas with strong Welsh cultural influences or connections. The name's meaning of honesty and sincerity has likely contributed to its enduring appeal.

Sourced from namecensus.com.

Popularity

Dilys over time

The chart below shows babies named Dilys registered in England and Wales in the years where the name appears in the published records, from 1998 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 Dilys, the clearest high point is 2024. The latest England and Wales figure is 13 births in 2024, compared with 13 at the peak.

Babies born per year

Dilys
0371013199820112024

Decades

Dilys by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Dilys 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 #3436 37 5
2010s #2908 74 9
2000s #3118 54 9
1990s #3848 3 1

Related

Names similar to Dilys

FAQ

Dilys: questions and answers

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

In 2024, Dilys was ranked #2115 for girls in England and Wales, with 13 births registered.

When was Dilys most popular?

The peak year on record was 2024, with 13 babies registered as Dilys in England and Wales.

What is the meaning and origin of Dilys?

True and faithful one of Welsh origin.

How many people are called Dilys in the UK?

A total of 168 babies have been registered as Dilys across the 24 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.