Boy Name · Welsh Origin
Merlin
Last reviewed: June 2026
Merlin is a boy baby name of Welsh origin, meaning "Sea fortress". It currently sits in the Rare tier of US baby names for 2026, and parents who love Merlin often also consider Marlin.
Names like Merlin
Frequently asked about Merlin
What does the name Merlin mean?
Merlin means "Sea fortress" and is of Welsh origin.
What is the origin of Merlin?
Merlin originates in Welsh naming tradition.
How do you pronounce Merlin?
Merlin has 6 letters and is most commonly stressed on the first syllable.
Is Merlin a boy's or girl's name?
Merlin is primarily used as a boy's name in US records.
How popular is Merlin in 2026?
In our 2026 popularity tracker, Merlin sits in the Rare tier — an uncommon, standout choice.
What names are similar to Merlin?
Names that share Merlin's sound and style include Marlin, Merlyn, Mervin, Merlene, Merilyn.