Ollen is a rare variant of Olin that peaked in 1919 and has since faded.
Ollen is a boy name. It last appears in U.S. records in 2024. Ollen first appears in 1910 and peaked in 1919 (17 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2024 | 5 | 5 | #13,702 |
| 1969 | 7 | — | #3,833 |
| 1958 | 5 | — | #4,352 |
| 1954 | 5 | — | #4,214 |
| 1952 | 7 | — | #3,299 |
| 1950 | 8 | — | #2,956 |
| 1949 | 9 | — | #2,748 |
| 1948 | 6 | — | #3,575 |
| 1947 | 5 | — | #4,116 |
| 1946 | 5 | — | #3,880 |
| 1944 | 5 | — | #3,778 |
| 1943 | 5 | — | #3,912 |
| 1941 | 7 | — | #3,062 |
| 1939 | 6 | — | #3,384 |
| 1937 | 9 | — | #2,625 |
| 1935 | 6 | — | #3,544 |
| 1933 | 8 | — | #2,928 |
| 1932 | 8 | — | #3,028 |
| 1931 | 8 | — | #3,027 |
| 1930 | 8 | — | #3,213 |
| 1929 | 10 | — | #2,712 |
| 1928 | 10 | — | #2,794 |
| 1927 | 10 | — | #2,854 |
| 1926 | 9 | — | #3,076 |
| 1925 | 9 | — | #3,081 |
| 1924 | 11 | — | #2,781 |
| 1923 | 10 | — | #2,889 |
| 1922 | 10 | — | #2,942 |
| 1921 | 14 | — | #2,344 |
| 1920 | 12 | — | #2,563 |
| 1919 | 17 | — | #1,947 |
| 1918 | 10 | — | #2,832 |
| 1917 | 9 | — | #2,887 |
| 1916 | 8 | — | #3,115 |
| 1915 | 8 | — | #2,996 |
| 1914 | 7 | — | #2,837 |
| 1910 | 6 | — | #1,539 |