Merlyn is an uncommon variant of Merlin that peaked in 1930 and has since faded.
Merlyn is predominantly a boy name. In 2025 it ranked #11,534 among boys (6) and #12,740 among girls (7) — overall #14,052 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 13 | 13 | #12,740 | #11,534 |
| 2024 | 5 | 5 | #16,885 | — |
| 2023 | 12 | 12 | #8,808 | — |
| 2022 | 18 | 18 | #9,452 | #10,496 |
| 2021 | 16 | 16 | #10,070 | #11,676 |
| 2020 | 17 | 17 | #8,772 | #13,396 |
| 2019 | 16 | 16 | #10,240 | #11,669 |
| 2018 | 9 | 9 | #11,157 | — |
| 2017 | 15 | 15 | #11,317 | #11,709 |
| 2016 | 14 | 14 | #12,511 | #11,665 |
| 2015 | 12 | 12 | #9,325 | — |
| 2014 | 14 | 14 | #11,637 | #13,381 |
| 2013 | 11 | 11 | #18,378 | #11,692 |
| 2012 | 13 | 13 | #13,045 | #13,555 |
| 2011 | 15 | 15 | #8,071 | — |
| 2010 | 15 | 15 | #8,170 | — |
| 2009 | 24 | 24 | #7,950 | #9,582 |
| 2008 | 23 | 23 | #6,077 | — |
| 2007 | 18 | 18 | #7,308 | — |
| 2006 | 15 | 15 | #8,116 | — |
| 2005 | 16 | 16 | #7,382 | — |
| 2004 | 23 | 23 | #7,284 | #9,607 |
| 2003 | 19 | 19 | #6,232 | — |
| 2002 | 10 | 10 | #10,002 | — |
| 2001 | 10 | 10 | #9,855 | — |
| 2000 | 23 | 23 | #7,881 | #6,672 |
| 1999 | 19 | 19 | #9,255 | #6,913 |
| 1998 | 17 | 17 | #5,984 | — |
| 1997 | 19 | — | #6,708 | #10,266 |
| 1996 | 6 | — | #12,896 | — |
| 1995 | 12 | — | #7,368 | — |
| 1994 | 14 | — | #6,541 | — |
| 1993 | 20 | — | #6,496 | #8,330 |
| 1992 | 12 | — | #7,352 | — |
| 1991 | 14 | — | #11,060 | #7,022 |
| 1990 | 12 | — | #10,967 | #9,040 |
| 1989 | 9 | — | #8,496 | — |
| 1988 | 18 | — | #6,142 | #8,101 |
| 1987 | 11 | — | #12,537 | #6,667 |
| 1986 | 6 | — | #10,402 | — |
| 1985 | 8 | — | #8,038 | — |
| 1984 | 9 | — | #7,190 | — |
| 1981 | 8 | — | #7,874 | — |
| 1980 | 12 | — | — | #3,547 |
| 1979 | 14 | — | #9,733 | #4,690 |
| 1978 | 6 | — | — | #5,539 |
| 1977 | 10 | — | #10,654 | #6,502 |
| 1976 | 5 | — | #10,287 | — |
| 1975 | 6 | — | — | #5,227 |
| 1974 | 8 | — | — | #4,062 |
| 1973 | 6 | — | #8,057 | — |
| 1971 | 12 | — | #9,144 | #4,231 |
| 1970 | 14 | — | #7,653 | #3,726 |
| 1969 | 12 | — | — | #2,638 |
| 1968 | 18 | — | #6,031 | #2,683 |
| 1967 | 11 | — | #7,490 | #3,833 |
| 1966 | 15 | — | #7,266 | #2,734 |
| 1965 | 15 | — | #5,145 | #3,449 |
| 1964 | 20 | — | #7,453 | #2,170 |
| 1963 | 24 | — | #5,158 | #2,091 |
| 1962 | 28 | — | #4,445 | #1,938 |
| 1961 | 24 | — | #5,669 | #2,048 |
| 1960 | 27 | — | #4,086 | #2,094 |
| 1959 | 35 | — | #3,962 | #1,651 |
| 1958 | 31 | — | #3,866 | #1,820 |
| 1957 | 40 | — | #2,897 | #1,704 |
| 1956 | 25 | — | #4,364 | #2,064 |
| 1955 | 45 | — | #2,799 | #1,476 |
| 1954 | 49 | — | #2,763 | #1,354 |
| 1953 | 46 | — | #3,049 | #1,349 |
| 1952 | 53 | — | #3,141 | #1,179 |
| 1951 | 59 | — | #2,772 | #1,091 |
| 1950 | 57 | — | #2,740 | #1,099 |
| 1949 | 59 | — | #2,113 | #1,176 |
| 1948 | 69 | — | #2,166 | #1,017 |
| 1947 | 61 | — | #2,074 | #1,184 |
| 1946 | 63 | — | #2,371 | #1,008 |
| 1945 | 80 | — | #1,781 | #835 |
| 1944 | 84 | — | #1,594 | #838 |
| 1943 | 95 | — | #1,741 | #784 |
| 1942 | 102 | — | #1,617 | #744 |
| 1941 | 105 | — | #1,594 | #688 |
| 1940 | 114 | — | #1,574 | #634 |
| 1939 | 110 | — | #1,394 | #662 |
| 1938 | 133 | — | #1,629 | #558 |
| 1937 | 132 | — | #1,380 | #569 |
| 1936 | 141 | — | #1,160 | #569 |
| 1935 | 141 | — | #1,193 | #564 |
| 1934 | 147 | — | #1,252 | #553 |
| 1933 | 138 | — | #1,256 | #561 |
| 1932 | 137 | — | #1,444 | #569 |
| 1931 | 154 | — | #1,487 | #509 |
| 1930 | 159 | — | #1,737 | #510 |
| 1929 | 118 | — | #1,586 | #637 |
| 1928 | 132 | — | #1,305 | #626 |
| 1927 | 154 | — | #1,250 | #580 |
| 1926 | 118 | — | #1,474 | #682 |
| 1925 | 120 | — | #1,219 | #735 |
| 1924 | 98 | — | #1,750 | #791 |
| 1923 | 110 | — | #1,320 | #766 |
| 1922 | 93 | — | #1,942 | #793 |
| 1921 | 82 | — | #1,755 | #934 |
| 1920 | 81 | — | #2,435 | #832 |
| 1919 | 61 | — | #3,150 | #946 |
| 1918 | 67 | — | #2,467 | #914 |
| 1917 | 64 | — | #3,007 | #868 |
| 1916 | 47 | — | #2,200 | #1,169 |
| 1915 | 53 | — | #2,213 | #1,031 |
| 1914 | 29 | — | #2,563 | #1,377 |
| 1913 | 24 | — | #2,718 | #1,298 |
| 1912 | 23 | — | #2,289 | #1,251 |
| 1911 | 5 | — | — | #1,920 |
| 1908 | 5 | — | — | #1,532 |