Lenzy is a rare name used for both girls and boys that was most common in the 1910s and has all but disappeared.
Lenzy is predominantly a boy name. It last appears in U.S. records in 2009. Lenzy first appears in 1882 and peaked in 1917 (15 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2009 | 5 | 5 | #18,970 | — |
| 2008 | 5 | 5 | #19,260 | — |
| 2003 | 5 | 5 | #17,253 | — |
| 2002 | 8 | 8 | #11,722 | — |
| 1996 | 5 | — | #14,816 | — |
| 1992 | 10 | — | #14,539 | #9,273 |
| 1990 | 8 | — | #9,784 | — |
| 1988 | 5 | — | — | #8,024 |
| 1985 | 7 | — | — | #5,506 |
| 1984 | 13 | — | #9,820 | #5,323 |
| 1983 | 7 | — | #8,575 | — |
| 1980 | 6 | — | — | #5,954 |
| 1970 | 7 | — | — | #4,081 |
| 1969 | 7 | — | — | #3,793 |
| 1967 | 8 | — | — | #3,134 |
| 1966 | 6 | — | — | #3,758 |
| 1965 | 8 | — | — | #3,137 |
| 1964 | 5 | — | — | #4,385 |
| 1962 | 5 | — | — | #4,391 |
| 1961 | 7 | — | — | #3,535 |
| 1958 | 7 | — | — | #3,447 |
| 1957 | 12 | — | — | #2,440 |
| 1956 | 9 | — | — | #2,893 |
| 1955 | 13 | — | — | #2,270 |
| 1954 | 7 | — | — | #3,315 |
| 1953 | 7 | — | — | #3,292 |
| 1952 | 8 | — | — | #3,000 |
| 1951 | 7 | — | — | #3,236 |
| 1949 | 9 | — | — | #2,720 |
| 1948 | 6 | — | — | #3,520 |
| 1947 | 11 | — | — | #2,444 |
| 1946 | 6 | — | — | #3,374 |
| 1945 | 7 | — | — | #2,894 |
| 1944 | 6 | — | — | #3,309 |
| 1943 | 14 | — | — | #2,039 |
| 1942 | 9 | — | — | #2,626 |
| 1941 | 9 | — | — | #2,576 |
| 1939 | 8 | — | — | #2,726 |
| 1937 | 9 | — | — | #2,596 |
| 1936 | 11 | — | — | #2,244 |
| 1933 | 8 | — | — | #2,881 |
| 1932 | 10 | — | — | #2,558 |
| 1931 | 7 | — | — | #3,275 |
| 1930 | 8 | — | — | #3,168 |
| 1929 | 11 | — | — | #2,533 |
| 1928 | 13 | — | — | #2,337 |
| 1927 | 9 | — | — | #3,046 |
| 1926 | 15 | — | — | #2,147 |
| 1925 | 10 | — | — | #2,855 |
| 1924 | 11 | — | — | #2,757 |
| 1923 | 5 | — | — | #4,597 |
| 1922 | 9 | — | — | #3,145 |
| 1921 | 8 | — | — | #3,376 |
| 1920 | 11 | — | — | #2,689 |
| 1919 | 9 | — | — | #3,019 |
| 1918 | 7 | — | — | #3,560 |
| 1917 | 15 | — | — | #2,049 |
| 1916 | 13 | — | — | #2,210 |
| 1915 | 9 | — | — | #2,736 |
| 1914 | 6 | — | — | #3,107 |
| 1912 | 5 | — | — | #2,748 |
| 1898 | 5 | — | — | #1,231 |
| 1882 | 5 | — | — | #1,025 |