Merrilyn is a rare variant of Merlyn that was most common in the 1940s and has all but disappeared.
Merrilyn is a girl name. It last appears in U.S. records in 1973. Merrilyn was first reported in SSA data in 1923 and peaked in 1944 (40 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1973 | 6 | — | #8,058 |
| 1972 | 5 | — | #9,120 |
| 1971 | 9 | — | #5,850 |
| 1970 | 7 | — | #6,805 |
| 1969 | 5 | — | #8,236 |
| 1967 | 5 | — | #7,493 |
| 1964 | 8 | — | #5,306 |
| 1963 | 12 | — | #3,959 |
| 1962 | 11 | — | #4,193 |
| 1961 | 6 | — | #6,336 |
| 1960 | 10 | — | #4,369 |
| 1957 | 12 | — | #3,613 |
| 1956 | 19 | — | #2,691 |
| 1955 | 14 | — | #3,185 |
| 1954 | 10 | — | #3,884 |
| 1953 | 15 | — | #2,893 |
| 1952 | 23 | — | #2,179 |
| 1951 | 20 | — | #2,299 |
| 1950 | 25 | — | #1,946 |
| 1949 | 31 | — | #1,725 |
| 1948 | 30 | — | #1,727 |
| 1947 | 27 | — | #1,888 |
| 1946 | 28 | — | #1,705 |
| 1945 | 25 | — | #1,690 |
| 1944 | 40 | — | #1,266 |
| 1943 | 38 | — | #1,336 |
| 1942 | 38 | — | #1,317 |
| 1941 | 22 | — | #1,728 |
| 1940 | 12 | — | #2,523 |
| 1939 | 16 | — | #2,096 |
| 1938 | 19 | — | #1,851 |
| 1937 | 13 | — | #2,406 |
| 1936 | 14 | — | #2,231 |
| 1935 | 20 | — | #1,758 |
| 1934 | 11 | — | #2,678 |
| 1933 | 17 | — | #1,951 |
| 1932 | 16 | — | #2,104 |
| 1931 | 9 | — | #3,151 |
| 1930 | 11 | — | #2,802 |
| 1929 | 11 | — | #2,862 |
| 1928 | 16 | — | #2,260 |
| 1927 | 17 | — | #2,225 |
| 1926 | 10 | — | #3,201 |
| 1925 | 12 | — | #2,884 |
| 1924 | 12 | — | #2,918 |
| 1923 | 14 | — | #2,555 |