Rilyn
Girl name · #4519 in 2025 · Very rare
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: SSA.
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
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: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.