MallowbyNames

Reilyn

RAY-lin · Of uncertain origin; possibly a modern invention blending sounds from names like Riley and Kaylyn, or a variant of Raylyn.

Peak popularity
2011
Usually for
Girls
Trend
Declining since 2022

Declining since 2022.

Popularity of Reilyn since 2003

Babies named Reilyn per year in U.S. Social Security records.

6121820102020Most births 2011Girls
Data table (by decade)
DecadeGirls
2000s40
2010s100
2020s50

Meaning & origin

Reilyn is a modern invented name that first appeared in U.S. birth records in 2003, reflecting the early-2000s trend of creative spellings and the popular -lyn suffix. Its peak year was 2011, after which its usage has been declining, with a notable drop since 2022. While it has never ranked in the top 1000, it represents the broader phenomenon of names formed by blending familiar sounds, such as Riley and Kaylyn, rather than drawing from historical or linguistic roots. The name has appeared consistently but infrequently, with no concentration in any particular state. As a rare and contemporary choice, Reilyn appeals to parents seeking a distinctive yet intuitive feminine name.

Reilyn first appeared in U.S. birth records in 2003, a period when creative respellings and blended feminine names were popular. Its formation likely combines the syllable "Rey" (as in Riley or Ray) with the trendy "-lyn" suffix, common in names like Caitlyn and Brooklyn. Spelling variants include Raylyn and Reilyn, though the exact derivation is unclear.

Nicknames & variants

Nicknames: Rey, Lyn

Variants: Raylyn, Reylyn

Sibling names for Reilyn

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

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

R is for Reilyn, our favorite little girl.

R is for Reilyn…”

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

Make Reilyn's book

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

Questions parents ask

What does the name Reilyn mean?
The meaning of Reilyn is uncertain. It is likely a modern invented name, possibly influenced by names like Riley or Raylyn, but no traditional meaning has been established.
How popular is the name Reilyn?
Reilyn has never ranked in the U.S. top 1000. Its peak year was 2011, with limited usage since. It is considered a rare name.
Is Reilyn a boy or girl name?
Reilyn is primarily used as a girl's name, following the pattern of other -lyn ending names.