Lem is a rare boys' name that was most common in the 1910s and has all but disappeared.
Lem is a boy name. It last appears in U.S. records in 1983. Lem first appears in 1880 and peaked in 1917 (39 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1983 | 6 | — | #5,930 |
| 1977 | 5 | — | #6,428 |
| 1971 | 6 | — | #4,702 |
| 1969 | 5 | — | #4,759 |
| 1966 | 5 | — | #4,288 |
| 1965 | 5 | — | #4,229 |
| 1964 | 8 | — | #3,174 |
| 1963 | 6 | — | #3,856 |
| 1961 | 5 | — | #4,405 |
| 1960 | 10 | — | #2,786 |
| 1959 | 7 | — | #3,458 |
| 1958 | 6 | — | #3,759 |
| 1957 | 8 | — | #3,153 |
| 1956 | 8 | — | #3,100 |
| 1955 | 6 | — | #3,722 |
| 1954 | 9 | — | #2,862 |
| 1953 | 7 | — | #3,287 |
| 1952 | 10 | — | #2,613 |
| 1951 | 14 | — | #2,104 |
| 1950 | 15 | — | #1,979 |
| 1949 | 13 | — | #2,180 |
| 1948 | 13 | — | #2,176 |
| 1947 | 7 | — | #3,247 |
| 1946 | 22 | — | #1,537 |
| 1945 | 10 | — | #2,328 |
| 1944 | 10 | — | #2,398 |
| 1943 | 10 | — | #2,483 |
| 1942 | 16 | — | #1,837 |
| 1941 | 11 | — | #2,274 |
| 1940 | 17 | — | #1,717 |
| 1939 | 12 | — | #2,121 |
| 1938 | 10 | — | #2,410 |
| 1937 | 7 | — | #3,062 |
| 1936 | 13 | — | #2,018 |
| 1935 | 19 | — | #1,630 |
| 1934 | 14 | — | #1,981 |
| 1933 | 17 | — | #1,743 |
| 1932 | 17 | — | #1,815 |
| 1931 | 17 | — | #1,809 |
| 1930 | 13 | — | #2,243 |
| 1929 | 20 | — | #1,709 |
| 1928 | 23 | — | #1,588 |
| 1927 | 16 | — | #2,088 |
| 1926 | 22 | — | #1,635 |
| 1925 | 27 | — | #1,438 |
| 1924 | 27 | — | #1,472 |
| 1923 | 21 | — | #1,729 |
| 1922 | 28 | — | #1,423 |
| 1921 | 32 | — | #1,311 |
| 1920 | 23 | — | #1,620 |
| 1919 | 31 | — | #1,287 |
| 1918 | 34 | — | #1,204 |
| 1917 | 39 | — | #1,073 |
| 1916 | 20 | — | #1,624 |
| 1915 | 27 | — | #1,288 |
| 1914 | 22 | — | #1,289 |
| 1913 | 11 | — | #1,750 |
| 1912 | 12 | — | #1,488 |
| 1911 | 12 | — | #1,018 |
| 1910 | 14 | — | #841 |
| 1909 | 12 | — | #873 |
| 1908 | 6 | — | #1,310 |
| 1907 | 9 | — | #967 |
| 1906 | 7 | — | #1,068 |
| 1905 | 9 | — | #881 |
| 1904 | 10 | — | #788 |
| 1903 | 7 | — | #966 |
| 1902 | 13 | — | #631 |
| 1901 | 7 | — | #903 |
| 1900 | 6 | — | #1,248 |
| 1899 | 16 | — | #493 |
| 1898 | 21 | — | #445 |
| 1897 | 14 | — | #567 |
| 1896 | 16 | — | #526 |
| 1895 | 13 | — | #590 |
| 1894 | 13 | — | #583 |
| 1893 | 12 | — | #592 |
| 1892 | 23 | — | #401 |
| 1891 | 10 | — | #622 |
| 1890 | 17 | — | #451 |
| 1889 | 21 | — | #397 |
| 1888 | 13 | — | #573 |
| 1887 | 11 | — | #569 |
| 1886 | 21 | — | #391 |
| 1885 | 18 | — | #430 |
| 1884 | 12 | — | #560 |
| 1883 | 24 | — | #345 |
| 1882 | 25 | — | #362 |
| 1881 | 19 | — | #391 |
| 1880 | 12 | — | #547 |