Glyn is a rare variant of Glenn that was most common in the 1930s and has all but disappeared.
Glyn is predominantly a boy name. It last appears in U.S. records in 2009. Glyn was first reported in SSA data in 1912 and peaked in 1934 (39 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2009 | 5 | 5 | — | #13,130 |
| 1998 | 5 | 5 | — | #10,174 |
| 1994 | 5 | — | — | #9,320 |
| 1989 | 6 | — | — | #7,313 |
| 1988 | 6 | — | — | #6,710 |
| 1985 | 8 | — | — | #4,854 |
| 1984 | 6 | — | — | #5,842 |
| 1983 | 7 | — | — | #5,116 |
| 1982 | 9 | — | — | #4,353 |
| 1980 | 5 | — | — | #6,607 |
| 1979 | 7 | — | — | #5,024 |
| 1978 | 8 | — | — | #4,297 |
| 1977 | 10 | — | — | #3,697 |
| 1976 | 7 | — | — | #4,592 |
| 1973 | 11 | — | — | #3,090 |
| 1972 | 12 | — | — | #2,891 |
| 1971 | 10 | — | — | #3,232 |
| 1970 | 14 | — | — | #2,552 |
| 1969 | 13 | — | — | #2,467 |
| 1968 | 17 | — | — | #1,985 |
| 1967 | 12 | — | — | #2,403 |
| 1966 | 18 | — | — | #1,843 |
| 1965 | 6 | — | — | #3,676 |
| 1964 | 21 | — | — | #1,757 |
| 1963 | 12 | — | — | #2,461 |
| 1962 | 22 | — | — | #1,725 |
| 1961 | 27 | — | #4,659 | #1,971 |
| 1960 | 20 | — | — | #1,832 |
| 1959 | 21 | — | — | #1,778 |
| 1958 | 22 | — | #6,427 | #1,977 |
| 1957 | 29 | — | #6,422 | #1,650 |
| 1956 | 24 | — | — | #1,621 |
| 1955 | 26 | — | #6,173 | #1,700 |
| 1954 | 17 | — | — | #1,921 |
| 1953 | 35 | — | — | #1,267 |
| 1952 | 31 | — | #4,639 | #1,563 |
| 1951 | 24 | — | — | #1,536 |
| 1950 | 16 | — | — | #1,907 |
| 1949 | 25 | — | — | #1,476 |
| 1948 | 26 | — | — | #1,439 |
| 1947 | 26 | — | #5,615 | #1,670 |
| 1946 | 21 | — | — | #1,579 |
| 1945 | 28 | — | — | #1,254 |
| 1944 | 31 | — | #3,494 | #1,414 |
| 1943 | 25 | — | — | #1,414 |
| 1942 | 33 | — | — | #1,221 |
| 1941 | 31 | — | — | #1,199 |
| 1940 | 29 | — | #3,642 | #1,448 |
| 1939 | 18 | — | — | #1,597 |
| 1938 | 23 | — | — | #1,414 |
| 1937 | 28 | — | #3,023 | #1,596 |
| 1936 | 24 | — | — | #1,371 |
| 1935 | 28 | — | — | #1,280 |
| 1934 | 44 | — | #4,554 | #1,047 |
| 1933 | 39 | — | #3,236 | #1,190 |
| 1932 | 26 | — | — | #1,365 |
| 1931 | 36 | — | — | #1,138 |
| 1930 | 28 | — | #3,469 | #1,669 |
| 1929 | 26 | — | — | #1,423 |
| 1928 | 17 | — | — | #1,928 |
| 1927 | 21 | — | — | #1,712 |
| 1926 | 32 | — | #5,168 | #1,417 |
| 1925 | 35 | — | #4,640 | #1,370 |
| 1924 | 30 | — | — | #1,365 |
| 1923 | 19 | — | — | #1,833 |
| 1922 | 21 | — | — | #1,725 |
| 1921 | 16 | — | — | #2,098 |
| 1920 | 28 | — | — | #1,400 |
| 1919 | 24 | — | — | #1,503 |
| 1918 | 17 | — | — | #1,938 |
| 1917 | 13 | — | — | #2,219 |
| 1916 | 15 | — | — | #1,989 |
| 1915 | 12 | — | — | #2,228 |
| 1914 | 5 | — | — | #3,458 |
| 1913 | 13 | — | — | #1,533 |
| 1912 | 8 | — | — | #1,949 |