MallowbyNames

Merilyn

MARE-uh-lin · A blend of Mary and Lynn, suggesting 'beloved lake' or 'star of the sea'.

Peak popularity
1935
Usually for
Girls
Trend
Rising since 2020

A 1930s favorite, climbing again.

Popularity of Merilyn since 1915

Babies named Merilyn per year in U.S. Social Security records. Raw births topped out in 1946, but relative to how few babies were recorded back then, Merilyn's real moment was 1935.

255075192019602000Most births 1946Girls
Data table (by decade)
DecadeGirls
1910s33
1920s346
1930s583
1940s585
1950s311
1960s123
1970s37
1980s41
1990s60
2000s130
2010s56
2020s12

Meaning & origin

Merilyn is a feminine name that first appeared in U.S. birth records in 1915, part of the early 20th-century fashion for compound names blending Mary with other elements. Its peak year came in 1935, when it saw its highest usage during the Depression era, though it never reached the top 1000. After a long decline, the name has been slowly rising in use since 2020, suggesting a possible revival among parents seeking vintage, melodic names. The name is associated with the 1930s revival trend, though it has not yet regained significant popularity. With no top states on record, its usage was geographically scattered but most common in areas with strong English and Welsh heritage. Despite its rarity, Merilyn offers a distinctive alternative to the more common Marilyn, carrying the same sweet, classic feel.

Merilyn is a modern combination of the names Mary and Lynn. Mary derives from Hebrew Miryam, of debated meaning, often interpreted as 'beloved' or 'star of the sea.' Lynn originates from a Welsh word for 'lake.' The blend emerged in the early 20th century as part of a trend of creating feminine names by combining traditional elements. It was most popular in the 1930s in the United States, though never among the top ranks.

Nicknames & variants

Nicknames: Merri, Lyn, Merry

Variants: Marilyn, Merrilyn, Merilynn

Sibling names for Merilyn

Names that share Merilyn's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

M is for Merilyn, our favorite little girl.

M is for Merilyn…”

In a Mallowby alphabet book, Merilyn's letter becomes Merilyn's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Merilyn's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Merilyn mean?
Merilyn is a combination of Mary and Lynn, so it can be interpreted as 'beloved lake' or 'star of the sea,' reflecting the meanings of its root names.
How popular is Merilyn today?
Merilyn is very rare. It last appeared in the top 1000 in 1965, and as of 2025, it does not rank in the top 1000, though it has been rising slightly since 2020.
Is Merilyn a girl name?
Yes, Merilyn is exclusively used for girls.