Rilyn is a rare name used for both girls and boys that peaked in 2012 and has grown less common since.
Rilyn is predominantly a girl name. In 2025 it ranked #4,529 among girls (31) and #11,724 among boys (6) — overall #6,931 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 37 | 37 | #4,529 | #11,724 |
| 2024 | 34 | 34 | #4,275 | — |
| 2023 | 47 | 47 | #3,820 | #10,577 |
| 2022 | 59 | 59 | #3,115 | #12,023 |
| 2021 | 56 | 56 | #2,991 | — |
| 2020 | 54 | 54 | #3,216 | #13,644 |
| 2019 | 52 | 52 | #3,494 | #10,577 |
| 2018 | 57 | 57 | #3,195 | #11,848 |
| 2017 | 79 | 79 | #2,527 | #9,506 |
| 2016 | 93 | 93 | #2,303 | #8,045 |
| 2015 | 92 | 92 | #2,401 | #5,935 |
| 2014 | 74 | 74 | #2,641 | #10,490 |
| 2013 | 73 | 73 | #2,483 | — |
| 2012 | 120 | 120 | #1,970 | #4,821 |
| 2011 | 109 | 109 | #2,065 | #5,890 |
| 2010 | 78 | 78 | #2,718 | #7,008 |
| 2009 | 70 | 70 | #2,931 | #8,173 |
| 2008 | 43 | 43 | #3,768 | — |
| 2007 | 54 | 54 | #3,521 | #10,649 |
| 2006 | 48 | 48 | #3,841 | #9,384 |
| 2005 | 40 | 40 | #4,180 | #11,170 |
| 2004 | 19 | 19 | #6,443 | — |
| 2003 | 11 | 11 | #9,560 | — |
| 2002 | 14 | 14 | #7,743 | — |
| 2001 | 9 | 9 | #10,826 | — |
| 2000 | 7 | 7 | #12,844 | — |
| 1999 | 5 | 5 | #16,320 | — |