Harlyn is an uncommon name used for both girls and boys that peaked in 2017 and remains in steady use.
Harlyn is predominantly a girl name. In 2025 it ranked #2,142 among girls (87) and #4,304 among boys (24) — overall #3,301 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 111 | 111 | #2,142 | #4,304 |
| 2024 | 176 | 176 | #1,404 | #5,748 |
| 2023 | 182 | 182 | #1,383 | #5,129 |
| 2022 | 147 | 147 | #1,586 | #6,606 |
| 2021 | 137 | 137 | #1,734 | #5,199 |
| 2020 | 140 | 140 | #1,634 | #6,423 |
| 2019 | 146 | 146 | #1,618 | #5,916 |
| 2018 | 199 | 199 | #1,245 | #6,848 |
| 2017 | 237 | 237 | #1,128 | #5,622 |
| 2016 | 215 | 215 | #1,215 | #6,871 |
| 2015 | 86 | 86 | #2,420 | #7,689 |
| 2014 | 53 | 53 | #3,676 | #7,220 |
| 2013 | 54 | 54 | #3,529 | #7,722 |
| 2012 | 42 | 42 | #4,163 | #11,295 |
| 2011 | 41 | 41 | #4,284 | #10,004 |
| 2010 | 28 | 28 | #6,260 | #10,043 |
| 2009 | 35 | 35 | #5,770 | #7,382 |
| 2008 | 20 | 20 | #6,646 | — |
| 2007 | 7 | 7 | #14,454 | — |
| 2005 | 13 | 13 | #13,520 | #10,571 |
| 1996 | 5 | — | — | #9,538 |
| 1969 | 5 | — | — | #4,646 |
| 1958 | 5 | — | — | #4,181 |
| 1955 | 7 | — | — | #3,310 |
| 1952 | 12 | — | — | #2,304 |
| 1948 | 9 | — | — | #2,683 |
| 1947 | 5 | — | — | #3,956 |
| 1945 | 12 | — | — | #2,048 |
| 1944 | 7 | — | — | #2,971 |
| 1939 | 9 | — | — | #2,520 |
| 1938 | 5 | — | — | #3,741 |
| 1936 | 17 | — | — | #1,677 |
| 1935 | 12 | — | — | #2,178 |
| 1934 | 9 | — | — | #2,637 |
| 1933 | 6 | — | — | #3,441 |
| 1932 | 5 | — | — | #3,997 |
| 1931 | 8 | — | — | #2,953 |
| 1930 | 12 | — | — | #2,357 |
| 1929 | 5 | — | — | #4,229 |
| 1928 | 13 | — | — | #2,321 |
| 1924 | 11 | — | — | #2,727 |
| 1923 | 10 | — | — | #2,839 |
| 1919 | 7 | — | — | #3,555 |