Mortimer is a boy name. It last appeared in U.S. Social Security records in 2023. Mortimer first appears in the data in 1880 and reached its peak in 1916 (91 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 2023 | 5 | #25,185 |
| 2021 | 6 | #22,337 |
| 2020 | 8 | #18,439 |
| 2019 | 5 | #25,521 |
| 2015 | 5 | #26,434 |
| 1972 | 5 | #12,136 |
| 1971 | 5 | #12,019 |
| 1970 | 7 | #9,362 |
| 1966 | 6 | #8,530 |
| 1965 | 6 | #8,513 |
| 1964 | 8 | #7,400 |
| 1963 | 8 | #7,284 |
| 1962 | 5 | #9,612 |
| 1961 | 6 | #8,623 |
| 1959 | 6 | #8,319 |
| 1958 | 5 | #9,090 |
| 1957 | 7 | #7,424 |
| 1956 | 8 | #6,806 |
| 1954 | 8 | #6,599 |
| 1953 | 7 | #7,019 |
| 1951 | 6 | #7,443 |
| 1950 | 12 | #4,901 |
| 1948 | 5 | #8,056 |
| 1947 | 12 | #4,930 |
| 1946 | 5 | #7,629 |
| 1945 | 5 | #7,110 |
| 1944 | 9 | #5,132 |
| 1943 | 11 | #4,711 |
| 1942 | 9 | #5,220 |
| 1941 | 7 | #5,805 |
| 1940 | 12 | #4,165 |
| 1939 | 8 | #5,229 |
| 1938 | 14 | #3,833 |
| 1937 | 18 | #3,252 |
| 1936 | 15 | #3,573 |
| 1935 | 12 | #4,200 |
| 1934 | 19 | #3,168 |
| 1933 | 16 | #3,485 |
| 1932 | 29 | #2,505 |
| 1931 | 20 | #3,106 |
| 1930 | 36 | #2,295 |
| 1929 | 42 | #2,079 |
| 1928 | 47 | #2,001 |
| 1927 | 43 | #2,145 |
| 1926 | 48 | #1,989 |
| 1925 | 58 | #1,794 |
| 1924 | 62 | #1,786 |
| 1923 | 71 | #1,616 |
| 1922 | 79 | #1,533 |
| 1921 | 83 | #1,501 |
| 1920 | 70 | #1,631 |
| 1919 | 91 | #1,355 |
| 1918 | 88 | #1,400 |
| 1917 | 83 | #1,398 |
| 1916 | 91 | #1,314 |
| 1915 | 76 | #1,401 |
| 1914 | 75 | #1,233 |
| 1913 | 57 | #1,256 |
| 1912 | 55 | #1,211 |
| 1911 | 18 | #1,755 |
| 1910 | 11 | #2,277 |
| 1909 | 9 | #2,367 |
| 1908 | 9 | #2,263 |
| 1907 | 17 | #1,517 |
| 1906 | 9 | #2,079 |
| 1905 | 12 | #1,731 |
| 1904 | 13 | #1,619 |
| 1903 | 5 | #2,704 |
| 1902 | 7 | #2,230 |
| 1901 | 10 | #1,703 |
| 1900 | 6 | #2,677 |
| 1899 | 10 | #1,661 |
| 1898 | 11 | #1,671 |
| 1897 | 7 | #2,010 |
| 1896 | 13 | #1,480 |
| 1895 | 8 | #1,918 |
| 1894 | 14 | #1,354 |
| 1893 | 10 | #1,569 |
| 1891 | 13 | #1,255 |
| 1890 | 7 | #1,821 |
| 1888 | 8 | #1,663 |
| 1887 | 8 | #1,524 |
| 1886 | 14 | #1,104 |
| 1885 | 11 | #1,234 |
| 1884 | 10 | #1,301 |
| 1883 | 10 | #1,218 |
| 1882 | 15 | #963 |
| 1881 | 11 | #1,056 |
| 1880 | 12 | #1,049 |