NameCensus.

UK boy's name

Macsen

A Welsh given name derived from the Latin Maximus, meaning "the greatest".

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.

Macsen is a boy's name in the UK records. People looking for Macsen popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #396, with 104 babies registered with the name. Its strongest year in the published records was 2023, with 108 births.

This profile covers 1,160 England and Wales registrations across 29 recorded years from 1996 to 2024. The figures come from ONS England and Wales and NRS Scotland, 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 96% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 1,156 living people in the UK are called Macsen. 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

  • Macsen ranked #396 for boys in England and Wales in 2024, with 104 registrations.
  • The name peaked in 2023, when 108 boys were registered as Macsen.
  • Macsen ranks best in Scotland in the latest published regional snapshot for that area, where it placed #720 in 2021.
  • About 1,156 living people in the UK are estimated to have Macsen as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#396

2024

Births in 2024

104

Latest year

Peak year

2023

108 births

Estimated living

1,156

2026

Meaning

What does Macsen mean?

The name Macsen has its origins in the Welsh language and culture, tracing back to the Celtic era in ancient Britain. It is believed to be derived from the Welsh word "macsuen," which means "the son of a chief" or "the son of a noble." This suggests that the name was initially reserved for individuals of high social standing or those born into prominent families.

In Welsh mythology, Macsen is associated with the legendary figure of Maxen Wledig, who is believed to have been a Roman emperor in Britain during the 4th century AD. Some scholars have also linked the name to the Latin name "Magnus," meaning "great" or "mighty," further reinforcing its connotation of strength and nobility.

One of the earliest recorded instances of the name Macsen can be found in the Welsh Triads, a collection of traditional narratives dating back to the Middle Ages. The Triads mention Macsen Wledig, a figure often identified with the Roman emperor Magnus Maximus, who ruled parts of Britain and Gaul from 383 to 388 AD.

Throughout history, several notable individuals have borne the name Macsen. One of the most prominent was Macsen, the son of the Welsh prince Gwydion, who is featured in the ancient Welsh collection of prose tales known as the Mabinogion, which dates back to the 12th or 13th century.

Another historical figure with the name Macsen was Macsimus Tyrannus, a Roman usurper who briefly ruled as the Western Roman Emperor from 408 to 411 AD. He is believed to have been of British or Hispanic descent and played a significant role in the tumultuous period leading to the fall of the Western Roman Empire.

In the 6th century AD, Macsen Gwyn, a legendary Welsh hero and prince, is said to have lived. Although the details of his life are shrouded in myth and legend, he is often depicted as a brave warrior and leader who defended his people against invaders.

In more recent times, Macsen Wledig (1550-1620) was a Welsh scholar and translator who is credited with producing one of the first translations of the Bible into the Welsh language, contributing significantly to the preservation and promotion of the Welsh language and culture.

Additionally, Macsen Ilar (1909-1983) was a prominent Welsh poet and writer who played a crucial role in the Welsh literary renaissance of the 20th century. His works often explored themes of Welsh identity, nationalism, and the struggles of rural communities.

Sourced from namecensus.com.

Popularity

Macsen over time

The chart below shows babies named Macsen registered in England and Wales in the years where the name appears in the published records, 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 Macsen, the clearest high point is 2023. The latest England and Wales figure is 104 births in 2024, compared with 108 at the peak.

Babies born per year

Macsen
0275481108199620102024

Decades

Macsen by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Macsen 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 #446 463 5
2010s #680 556 10
2000s #1567 125 10
1990s #2469 16 4

Geography

Where Macsen is most common

The bars show the latest published local birth counts for Macsen. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.

Macsen ranks best in Scotland in the latest published regional snapshot for that area, where it placed #720 in 2021.

Scotland
3

Across the UK

Macsen in Scotland and Northern Ireland

Scotland (NRS)

#720 in 2021

1 years of NRS records, 3 total registered

Related

Names similar to Macsen

FAQ

Macsen: questions and answers

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

In 2024, Macsen was ranked #396 for boys in England and Wales, with 104 births registered.

When was Macsen most popular?

The peak year on record was 2023, with 108 babies registered as Macsen in England and Wales.

What is the meaning and origin of Macsen?

A Welsh given name derived from the Latin Maximus, meaning "the greatest".

How many people are called Macsen in the UK?

A total of 1,160 babies have been registered as Macsen across the 29 years of ONS England & Wales records shown here, plus 3 more in Scotland.

Where is Macsen most common?

In the latest published local rankings, Macsen ranks best in Scotland, where it placed #720 in 2021. The regional bars on this page use birth counts, so they also reflect the size of each region.

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.