Total babies named Ollen (all years): 302
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 5 / #13649 / 0.000% |
| 1969 | 7 / #3834 / 0.000% |
| 1958 | 5 / #4352 / 0.000% |
| 1954 | 5 / #4214 / 0.000% |
| 1952 | 7 / #3299 / 0.000% |
| 1950 | 8 / #2956 / 0.000% |
| 1949 | 9 / #2748 / 0.001% |
| 1948 | 6 / #3575 / 0.000% |
| 1947 | 5 / #4116 / 0.000% |
| 1946 | 5 / #3879 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1944 | 5 / #3778 / 0.000% |
| 1943 | 5 / #3912 / 0.000% |
| 1941 | 7 / #3062 / 0.001% |
| 1939 | 6 / #3385 / 0.001% |
| 1937 | 9 / #2624 / 0.001% |
| 1935 | 6 / #3544 / 0.001% |
| 1933 | 8 / #2929 / 0.001% |
| 1932 | 8 / #3028 / 0.001% |
| 1931 | 8 / #3027 / 0.001% |
| 1930 | 8 / #3213 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1929 | 10 / #2712 / 0.001% |
| 1928 | 10 / #2794 / 0.001% |
| 1927 | 10 / #2854 / 0.001% |
| 1926 | 9 / #3076 / 0.001% |
| 1925 | 9 / #3081 / 0.001% |
| 1924 | 11 / #2781 / 0.001% |
| 1923 | 10 / #2889 / 0.001% |
| 1922 | 10 / #2942 / 0.001% |
| 1921 | 14 / #2344 / 0.001% |
| 1920 | 12 / #2563 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1919 | 17 / #1947 / 0.002% |
| 1918 | 10 / #2832 / 0.001% |
| 1917 | 9 / #2887 / 0.001% |
| 1916 | 8 / #3115 / 0.001% |
| 1915 | 8 / #2996 / 0.001% |
| 1914 | 7 / #2837 / 0.001% |
| 1910 | 6 / #1539 / 0.003% |