Rilyn
Girl name · #4519 in 2025 · Very rare
How old is the name Rilyn? In official American birth records, Rilyn has been tracked continuously since 1999, giving it 26 years of documented American history.
Rilyn is currently the #4519 girl name in the United States — 31 babies received it in 2025. A decade ago it stood at #2382, so the name has been falling over the past ten years. Roughly one in every 58,065 girls born in 2025 was named Rilyn.
The 26-year story
Rilyn first appears in the Social Security records in 1999, when 5 girls received the name. Its peak came in 2012, when 100 girls were named Rilyn — good for #1955 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Rilyn per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Rilyn against up to 5 other names.
Uniqueness: will there be another Rilyn in class?
On our rarity read — which blends how common Rilyn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Rilyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Rilyn is most common
State-level data for Rilyn is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Rilyn
Statistically, parents drawn to Rilyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Railyn, Rozlyn, Azlyn, Raylyn, and Taylyn.
RailynRozlynAzlynRaylynTaylynEmilynEmalynKeilyn
Rank history (last 25 years)
| Year | Babies named Rilyn | Rank |
|---|---|---|
| 2025 | 31 | #4460 |
| 2024 | 34 | #4207 |
| 2023 | 40 | #3763 |
| 2022 | 53 | #3073 |
| 2021 | 56 | #2958 |
| 2020 | 49 | #3179 |
| 2019 | 45 | #3451 |
| 2018 | 51 | #3158 |
| 2017 | 71 | #2508 |
| 2016 | 83 | #2287 |
| 2015 | 77 | #2382 |
| 2014 | 67 | #2615 |
| 2013 | 73 | #2458 |
| 2012 | 100 | #1955 |
| 2011 | 94 | #2058 |
| 2010 | 66 | #2691 |
| 2009 | 60 | #2892 |
| 2008 | 43 | #3710 |
| 2007 | 47 | #3482 |
| 2006 | 40 | #3795 |
| 2005 | 34 | #4118 |
| 2004 | 19 | #6216 |
| 2003 | 11 | #9048 |
| 2002 | 14 | #7444 |
| 2001 | 9 | #10102 |
Frequently asked questions
How old is the name Rilyn?
In official American birth records, the name Rilyn first appeared in 1999 (over 26 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 26 years.
Is Rilyn a popular girl name?
Rilyn ranked #4519 among girls in 2025 with 31 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2382.
When was the name Rilyn most popular?
Rilyn peaked in 2012, when 100 American girls received the name (ranked #1955 that year). Since 2012 the name has declined from that high.
How rare is the name Rilyn?
In 2025, roughly 1 in 58,065 newborn American girls was named Rilyn. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.