Mortimer is a rare boys' name that peaked in 1916 and has since faded.
Mortimer is a boy name. It last appears in U.S. records in 2023. Mortimer was first reported in SSA data in 1880 and peaked in 1916 (91 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2023 | 5 | 5 | #13,528 |
| 2021 | 6 | 6 | #11,701 |
| 2020 | 8 | 8 | #9,281 |
| 2019 | 5 | 5 | #13,496 |
| 2015 | 5 | 5 | #13,417 |
| 1972 | 5 | — | #5,509 |
| 1971 | 5 | — | #5,414 |
| 1970 | 7 | — | #4,103 |
| 1966 | 6 | — | #3,805 |
| 1965 | 6 | — | #3,806 |
| 1964 | 8 | — | #3,209 |
| 1963 | 8 | — | #3,243 |
| 1962 | 5 | — | #4,452 |
| 1961 | 6 | — | #3,933 |
| 1959 | 6 | — | #3,870 |
| 1958 | 5 | — | #4,332 |
| 1957 | 7 | — | #3,461 |
| 1956 | 8 | — | #3,121 |
| 1954 | 8 | — | #3,103 |
| 1953 | 7 | — | #3,330 |
| 1951 | 6 | — | #3,605 |
| 1950 | 12 | — | #2,287 |
| 1948 | 5 | — | #4,024 |
| 1947 | 12 | — | #2,324 |
| 1946 | 5 | — | #3,861 |
| 1945 | 5 | — | #3,632 |
| 1944 | 9 | — | #2,579 |
| 1943 | 11 | — | #2,362 |
| 1942 | 9 | — | #2,654 |
| 1941 | 7 | — | #3,052 |
| 1940 | 12 | — | #2,153 |
| 1939 | 8 | — | #2,748 |
| 1938 | 14 | — | #1,951 |
| 1937 | 18 | — | #1,672 |
| 1936 | 15 | — | #1,856 |
| 1935 | 12 | — | #2,207 |
| 1934 | 19 | — | #1,651 |
| 1933 | 16 | — | #1,809 |
| 1932 | 29 | — | #1,282 |
| 1931 | 20 | — | #1,625 |
| 1930 | 36 | — | #1,186 |
| 1929 | 42 | — | #1,070 |
| 1928 | 47 | — | #1,016 |
| 1927 | 43 | — | #1,094 |
| 1926 | 48 | — | #1,004 |
| 1925 | 58 | — | #887 |
| 1924 | 62 | — | #879 |
| 1923 | 71 | — | #790 |
| 1922 | 79 | — | #745 |
| 1921 | 83 | — | #727 |
| 1920 | 70 | — | #803 |
| 1919 | 91 | — | #644 |
| 1918 | 88 | — | #662 |
| 1917 | 83 | — | #658 |
| 1916 | 91 | — | #613 |
| 1915 | 76 | — | #669 |
| 1914 | 75 | — | #582 |
| 1913 | 57 | — | #585 |
| 1912 | 55 | — | #542 |
| 1911 | 18 | — | #782 |
| 1910 | 11 | — | #1,023 |
| 1909 | 9 | — | #1,059 |
| 1908 | 9 | — | #1,000 |
| 1907 | 17 | — | #627 |
| 1906 | 9 | — | #900 |
| 1905 | 12 | — | #729 |
| 1904 | 13 | — | #674 |
| 1903 | 5 | — | #1,249 |
| 1902 | 7 | — | #994 |
| 1901 | 10 | — | #714 |
| 1900 | 6 | — | #1,267 |
| 1899 | 10 | — | #693 |
| 1898 | 11 | — | #693 |
| 1897 | 7 | — | #910 |
| 1896 | 13 | — | #618 |
| 1895 | 8 | — | #846 |
| 1894 | 14 | — | #556 |
| 1893 | 10 | — | #693 |
| 1891 | 13 | — | #517 |
| 1890 | 7 | — | #855 |
| 1888 | 8 | — | #797 |
| 1887 | 8 | — | #724 |
| 1886 | 14 | — | #501 |
| 1885 | 11 | — | #595 |
| 1884 | 10 | — | #646 |
| 1883 | 10 | — | #625 |
| 1882 | 15 | — | #481 |
| 1881 | 11 | — | #553 |
| 1880 | 12 | — | #552 |