Lem is a boy name. It last appeared in U.S. Social Security records in 1983. Lem first appears in the data in 1880 and reached its peak in 1917 (39 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 1983 | 6 | #13,282 |
| 1977 | 5 | #14,199 |
| 1971 | 6 | #10,744 |
| 1969 | 5 | #10,797 |
| 1966 | 5 | #9,570 |
| 1965 | 5 | #9,500 |
| 1964 | 8 | #7,399 |
| 1963 | 6 | #8,686 |
| 1961 | 5 | #9,634 |
| 1960 | 10 | #6,311 |
| 1959 | 7 | #7,565 |
| 1958 | 6 | #8,143 |
| 1957 | 8 | #6,903 |
| 1956 | 8 | #6,805 |
| 1955 | 6 | #7,914 |
| 1954 | 9 | #6,175 |
| 1953 | 7 | #7,018 |
| 1952 | 10 | #5,599 |
| 1951 | 14 | #4,541 |
| 1950 | 15 | #4,319 |
| 1949 | 13 | #4,621 |
| 1948 | 13 | #4,592 |
| 1947 | 7 | #6,757 |
| 1946 | 22 | #3,301 |
| 1945 | 10 | #4,760 |
| 1944 | 10 | #4,830 |
| 1943 | 10 | #4,981 |
| 1942 | 16 | #3,756 |
| 1941 | 11 | #4,504 |
| 1940 | 17 | #3,422 |
| 1939 | 12 | #4,121 |
| 1938 | 10 | #4,627 |
| 1937 | 7 | #5,696 |
| 1936 | 13 | #3,931 |
| 1935 | 19 | #3,148 |
| 1934 | 14 | #3,831 |
| 1933 | 17 | #3,376 |
| 1932 | 17 | #3,475 |
| 1931 | 17 | #3,446 |
| 1930 | 13 | #4,251 |
| 1929 | 20 | #3,288 |
| 1928 | 23 | #3,094 |
| 1927 | 16 | #3,992 |
| 1926 | 22 | #3,227 |
| 1925 | 27 | #2,871 |
| 1924 | 27 | #2,953 |
| 1923 | 21 | #3,413 |
| 1922 | 28 | #2,842 |
| 1921 | 32 | #2,609 |
| 1920 | 23 | #3,191 |
| 1919 | 31 | #2,543 |
| 1918 | 34 | #2,374 |
| 1917 | 39 | #2,140 |
| 1916 | 20 | #3,179 |
| 1915 | 27 | #2,519 |
| 1914 | 22 | #2,490 |
| 1913 | 11 | #3,340 |
| 1912 | 12 | #2,878 |
| 1911 | 12 | #2,247 |
| 1910 | 14 | #1,945 |
| 1909 | 12 | #1,986 |
| 1908 | 6 | #2,838 |
| 1907 | 9 | #2,199 |
| 1906 | 7 | #2,416 |
| 1905 | 9 | #2,040 |
| 1904 | 10 | #1,855 |
| 1903 | 7 | #2,226 |
| 1902 | 13 | #1,571 |
| 1901 | 7 | #2,084 |
| 1900 | 6 | #2,676 |
| 1899 | 16 | #1,288 |
| 1898 | 21 | #1,164 |
| 1897 | 14 | #1,408 |
| 1896 | 16 | #1,322 |
| 1895 | 13 | #1,449 |
| 1894 | 13 | #1,412 |
| 1893 | 12 | #1,414 |
| 1892 | 23 | #973 |
| 1891 | 10 | #1,467 |
| 1890 | 17 | #1,096 |
| 1889 | 21 | #949 |
| 1888 | 13 | #1,282 |
| 1887 | 11 | #1,248 |
| 1886 | 21 | #865 |
| 1885 | 18 | #932 |
| 1884 | 12 | #1,168 |
| 1883 | 24 | #725 |
| 1882 | 25 | #715 |
| 1881 | 19 | #778 |
| 1880 | 12 | #1,044 |