Lieutenant is a very rare boys' name that was most common in the 1910s and has all but disappeared.
Lieutenant is a boy name. It last appears in U.S. records in 1965. Lieutenant first appears in 1912 and peaked in 1917 (12 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1965 | 7 | — | #3,427 |
| 1964 | 6 | — | #3,867 |
| 1955 | 5 | — | #4,168 |
| 1954 | 6 | — | #3,668 |
| 1953 | 5 | — | #4,128 |
| 1950 | 8 | — | #2,924 |
| 1949 | 7 | — | #3,178 |
| 1946 | 6 | — | #3,379 |
| 1945 | 6 | — | #3,193 |
| 1943 | 10 | — | #2,490 |
| 1942 | 7 | — | #3,094 |
| 1941 | 5 | — | #3,805 |
| 1940 | 8 | — | #2,782 |
| 1937 | 6 | — | #3,367 |
| 1935 | 6 | — | #3,477 |
| 1933 | 5 | — | #3,946 |
| 1932 | 10 | — | #2,560 |
| 1928 | 7 | — | #3,567 |
| 1927 | 10 | — | #2,824 |
| 1925 | 7 | — | #3,595 |
| 1923 | 9 | — | #3,082 |
| 1922 | 8 | — | #3,419 |
| 1920 | 9 | — | #3,097 |
| 1919 | 12 | — | #2,448 |
| 1918 | 6 | — | #3,976 |
| 1917 | 12 | — | #2,366 |
| 1912 | 6 | — | #2,445 |