Merrilyn
Feminine
Merrilyn can be read as a respelling of a familiar name or as a compound of two ordinary English pieces. Its first element used to sit inside a word for something everybody has pulled apart at a dinner table.
How old is the name Merrilyn?
Merrilyn first appears in US birth records in 1923 — 102 years ago. The typical Merrilyn alive today was born around 1944, making them about 81 years old. About 400 people named Merrilyn are estimated to be alive in the US today.
When was the name Merrilyn most popular?
Merrilyn peaked in 1944, reaching #1255 nationally. See the whole 1944 chart.
Where it comes from
Origin, sound and short forms
Our story of Merrilyn
The forked bone in a bird's breast was called a merrythought in English for several centuries, and the name comes from the custom rather than the anatomy: two people pull, the one left holding the longer piece makes a wish, and the cheerful thought is the point. Wishbone is the American replacement and it won completely, to the extent that merrythought now sounds like something invented for a children's book. The custom itself is much older than either word and was recorded in Britain long before it reached America. The bone, incidentally, is a fused pair of collarbones, and in living birds it works as a spring during flight.
Meaningnot established
Not established
Marilyn was a twentieth-century construction whose elements were never documented. This spelling may respell it or may join merry to the Lyn ending, and the record does not say.
Pronouncing Merrilyn
MERR-ih-lin
Three syllables with the stress in front. Marilyn is said the same way, which is why the two are confused.
Nicknames for Merrilyn
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1923
- Most girls named
- 194440 — the highest on record
- Peak rank
- #1255reached in 1944
- Change vs 1972
- +20.0%6 in 1973, from 5
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Merrilyns among us
people named Merrilyn are estimated to be alive in the US today
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
Questions parents actually ask
Fashion outlook
Merrilyn sits outside the current charts, and that is its own kind of answer: naming cycles can only date the names they carried up. A name this rare has no decade stamped on it — it cannot go out of fashion, because it was never in.
Based on 146 years of naming cycles. How we read them
The trade-off
- Merri and Lyn are both available as short forms and both stand alone.
- The sound is entirely familiar, so it is never a puzzle to say.
- Three syllables with a strong front stress carry well across a room.
- Marilyn and Merrilyn will be confused by anybody catching the name once.
- The first element is also an ordinary English adjective, which people will notice.
- No origin is documented, so the meaning question has two candidates and no answer.
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Merrilyn
Feminine
Frequently asked
- How many Merrilyns are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 400 people named Merrilyn are estimated to be alive in the US today.
- How popular is the name Merrilyn in 2025?
- Merrilyn is rarely given in the US today — it does not rank in the top 2000 girl names.
- Will my child share the name Merrilyn with classmates?
- Merrilyn will almost certainly be the only one in school.
More M names
The most-given names starting with M, all years combined.
Mary#125 · Margaret#112 · Michelle#465 · Melissa#419 · Maria#87 · Martha#712 · Marie#617 · Mildred#1962
Looking for what else is popular rather than what resembles Merrilyn? See the current top 100.
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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