Harlin is a rare variant of Harlan that peaked in 1924 and remains in steady use.
Harlin is predominantly a boy name. In 2025 it ranked #4,303 for boy births in the United States (and #9,189 across all names), given to 24 babies. Harlin was first reported in SSA data in 1886 and peaked in 1924 (45 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 24 | 24 | — | #4,303 |
| 2024 | 34 | 34 | #8,636 | #4,614 |
| 2023 | 37 | 37 | #8,655 | #4,256 |
| 2022 | 28 | 28 | #16,200 | #4,477 |
| 2021 | 37 | 37 | #7,056 | #4,684 |
| 2020 | 23 | 23 | #11,466 | #5,805 |
| 2019 | 29 | 29 | #10,792 | #4,860 |
| 2018 | 29 | 29 | #16,559 | #4,276 |
| 2017 | 34 | 34 | #10,230 | #4,264 |
| 2016 | 38 | 38 | #15,013 | #3,469 |
| 2015 | 26 | 26 | #13,517 | #4,945 |
| 2014 | 24 | 24 | #17,484 | #4,941 |
| 2013 | 26 | 26 | #12,414 | #5,044 |
| 2012 | 13 | 13 | — | #6,440 |
| 2011 | 16 | 16 | — | #5,511 |
| 2010 | 17 | 17 | — | #5,335 |
| 2009 | 25 | 25 | — | #4,081 |
| 2008 | 15 | 15 | — | #5,875 |
| 2007 | 9 | 9 | — | #8,436 |
| 2006 | 10 | 10 | — | #7,625 |
| 2005 | 8 | 8 | — | #8,569 |
| 2004 | 6 | 6 | — | #10,437 |
| 2003 | 8 | 8 | — | #8,116 |
| 2001 | 12 | 12 | #16,237 | #8,628 |
| 1999 | 5 | 5 | #15,260 | — |
| 1997 | 8 | — | — | #6,834 |
| 1996 | 7 | — | — | #7,424 |
| 1995 | 10 | — | — | #5,652 |
| 1994 | 7 | — | — | #7,247 |
| 1993 | 7 | — | — | #7,088 |
| 1991 | 9 | — | — | #5,678 |
| 1990 | 5 | — | — | #8,611 |
| 1989 | 7 | — | — | #6,479 |
| 1988 | 5 | — | — | #7,709 |
| 1987 | 8 | — | — | #5,138 |
| 1985 | 10 | — | — | #4,167 |
| 1984 | 5 | — | — | #6,703 |
| 1981 | 5 | — | — | #6,650 |
| 1978 | 7 | — | — | #4,724 |
| 1977 | 5 | — | — | #6,220 |
| 1976 | 6 | — | — | #5,180 |
| 1975 | 5 | — | — | #5,792 |
| 1973 | 10 | — | — | #3,300 |
| 1972 | 9 | — | — | #3,448 |
| 1971 | 14 | — | — | #2,612 |
| 1969 | 8 | — | — | #3,418 |
| 1968 | 5 | — | — | #4,363 |
| 1967 | 8 | — | — | #3,087 |
| 1966 | 8 | — | — | #3,087 |
| 1965 | 13 | — | — | #2,310 |
| 1964 | 11 | — | — | #2,591 |
| 1963 | 9 | — | — | #2,928 |
| 1962 | 16 | — | — | #2,072 |
| 1961 | 14 | — | — | #2,278 |
| 1960 | 12 | — | — | #2,469 |
| 1959 | 15 | — | — | #2,151 |
| 1958 | 9 | — | — | #2,909 |
| 1957 | 16 | — | — | #2,048 |
| 1956 | 14 | — | — | #2,205 |
| 1955 | 20 | — | — | #1,755 |
| 1954 | 11 | — | — | #2,513 |
| 1953 | 12 | — | — | #2,338 |
| 1952 | 17 | — | — | #1,892 |
| 1951 | 19 | — | — | #1,750 |
| 1950 | 16 | — | — | #1,910 |
| 1949 | 24 | — | — | #1,522 |
| 1948 | 24 | — | — | #1,505 |
| 1947 | 30 | — | — | #1,345 |
| 1946 | 21 | — | — | #1,580 |
| 1945 | 14 | — | — | #1,885 |
| 1944 | 29 | — | — | #1,244 |
| 1943 | 20 | — | — | #1,602 |
| 1942 | 16 | — | — | #1,829 |
| 1941 | 31 | — | — | #1,200 |
| 1940 | 29 | — | — | #1,260 |
| 1939 | 25 | — | — | #1,339 |
| 1938 | 30 | — | — | #1,208 |
| 1937 | 32 | — | — | #1,170 |
| 1936 | 28 | — | — | #1,256 |
| 1935 | 27 | — | — | #1,306 |
| 1934 | 31 | — | — | #1,200 |
| 1933 | 28 | — | — | #1,261 |
| 1932 | 31 | — | — | #1,221 |
| 1931 | 33 | — | — | #1,201 |
| 1930 | 40 | — | — | #1,097 |
| 1929 | 26 | — | — | #1,425 |
| 1928 | 41 | — | — | #1,103 |
| 1927 | 37 | — | — | #1,186 |
| 1926 | 25 | — | — | #1,490 |
| 1925 | 31 | — | — | #1,313 |
| 1924 | 45 | — | — | #1,063 |
| 1923 | 37 | — | — | #1,184 |
| 1922 | 36 | — | — | #1,210 |
| 1921 | 40 | — | — | #1,129 |
| 1920 | 14 | — | — | #2,267 |
| 1919 | 30 | — | — | #1,302 |
| 1918 | 25 | — | — | #1,474 |
| 1917 | 19 | — | — | #1,723 |
| 1916 | 27 | — | — | #1,316 |
| 1915 | 19 | — | — | #1,628 |
| 1914 | 23 | — | — | #1,242 |
| 1913 | 10 | — | — | #1,861 |
| 1912 | 14 | — | — | #1,306 |
| 1907 | 5 | — | — | #1,422 |
| 1904 | 5 | — | — | #1,286 |
| 1886 | 5 | — | — | #1,025 |