Declining since 2022.
Popularity of Reilyn since 2003
Babies named Reilyn per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 2000s | 40 |
| 2010s | 100 |
| 2020s | 50 |
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
Sibling names for Reilyn
Names that share Reilyn's style, for a brother or sister.

