Merlyn
A unisex name of Welsh origin, meaning sea fortress; a form of Merlin.
Babies a year
15
the US, 2017
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
—
outside the ONS list
Merlyn by the numbers
Merlyn was given to 15 American babies in 2017, the most recent full year we hold.
Its American peak was 137 babies in 1930, so it is a 1930s name that has since fallen a long way.
Spelled almost the same
Other names in the records within a letter or two of Merlyn. Close spellings are not always related names, but they are usually worth seeing together.
Sounds like Merlyn
Names that are said the same way as Merlyn, however they are written. Sounding alike does not mean they share a history.
- Merlinsea fortress or bright sea14 in England and Wales (2025)
Other names that mean the sea
Like Merlyn, each of these has the sea in its meaning. Different names, different histories, the same idea.
- Dylanson of the sea10,158 in the US (2017)
- Kaisea672 in England and Wales (2025)
- Mariaof the sea; a form of Mary522 in England and Wales (2025)
- Marystar of the sea; beloved2,381 in the US (2017)
- Morgansea-born; great and bright2,273 in the US (2017)
- Mariahof the sea; a form of Maria1,604 in the US (2017)
Names about as common as Merlyn
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