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Home › Baby Names Directory › Macsen

Macsen

♂ Boy

Pronounced MAK-sen /ˈmæk.sɛn/High

Meaning: Welsh form of Maximus — Latin maximus, 'greatest' — borne by Magnus Maximus (Macsen Wledig) of Welsh legendMedium

In 30 seconds: The greatest, in the Welsh tongue: Macsen is the Welsh Maximus — borne by a legendary Roman-British emperor of Welsh tradition. Mythic, strong, and crisply Celtic-cool.
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Origin MediumLatin, Welsh
MeaningWelsh form of Maximus — Latin maximus, 'greatest' — borne by Magnus Maximus (Macsen Wledig) of Welsh legend
U.S. rank (2025)#3063 ↗ Rising
2025 U.S. births40 boys (0.00% of U.S. boys)
Peak year2017
Total births (all-time)≈ 469

Popularity in the U.S. · SSA data

peak 201720022025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Macsen is the Welsh form of Maximus — Latin maximus, 'greatest'. It is borne by Macsen Wledig, the Welsh legendary version of the Roman usurper-emperor Magnus Maximus, hero of a tale in the Mabinogion. A name of grandeur and Welsh myth.

In the U.S. it is very rare, appealing for its 'greatest' meaning and Celtic flavor. Mythic at the root, strong, and distinctive.

Did you know? Macsen Wledig — the Welsh name for the Roman emperor Magnus Maximus — stars in a medieval Welsh tale where he dreams of a beautiful woman and crosses the world to find her in Wales.
Overall data confidence 80%
Behind the Name — Macsen — etymology

Variations

MaxenMaxsenMaximus

Nicknames

MaxMac

Famous Bearers

  • ★Macsen Wledig (335-388)
    Roman emperor in the Western Empire, known in Welsh legend as Magnus Maximus and a significant figure in Welsh mythology and history

If you like Macsen…

Maximus— the Latin source name
Max— the short form within it
Emrys— a fellow Welsh legendary name
Tristen— a fellow Welsh choice
Bowen— shares Macsen's Welsh roots

Explore names like Macsen

By themelatinwelshmythological

All themes →All meanings →All origins →

Frequently Asked

What does the name Macsen mean?

Macsen is the Welsh form of Maximus, Latin for 'greatest'.

How do you pronounce Macsen?

It's said MAK-sen /ˈmæk.sɛn/ — two syllables, stress on the first.

Is Macsen a boy or girl name?

Macsen is a boy's name.

How popular is Macsen?

Macsen is a very rare name in the U.S.

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