Leonce is a rare boys' name that was most common in the 1920s and has all but disappeared.
Leonce is a boy name. It last appears in U.S. records in 2008. Leonce first appears in 1882 and peaked in 1925 (20 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2008 | 5 | 5 | #13,772 |
| 2005 | 5 | 5 | #12,575 |
| 1978 | 6 | — | #5,494 |
| 1975 | 7 | — | #4,599 |
| 1972 | 7 | — | #4,254 |
| 1969 | 8 | — | #3,472 |
| 1967 | 5 | — | #4,309 |
| 1964 | 5 | — | #4,386 |
| 1962 | 5 | — | #4,392 |
| 1960 | 5 | — | #4,372 |
| 1954 | 5 | — | #4,138 |
| 1951 | 7 | — | #3,237 |
| 1950 | 7 | — | #3,200 |
| 1949 | 9 | — | #2,722 |
| 1948 | 10 | — | #2,548 |
| 1947 | 5 | — | #4,037 |
| 1946 | 7 | — | #3,064 |
| 1945 | 5 | — | #3,578 |
| 1944 | 7 | — | #3,009 |
| 1943 | 7 | — | #3,113 |
| 1941 | 9 | — | #2,577 |
| 1939 | 10 | — | #2,377 |
| 1938 | 7 | — | #3,044 |
| 1937 | 8 | — | #2,802 |
| 1936 | 7 | — | #3,041 |
| 1935 | 10 | — | #2,474 |
| 1934 | 6 | — | #3,514 |
| 1932 | 8 | — | #2,990 |
| 1930 | 11 | — | #2,541 |
| 1929 | 9 | — | #2,870 |
| 1928 | 9 | — | #2,970 |
| 1927 | 18 | — | #1,922 |
| 1926 | 10 | — | #2,827 |
| 1925 | 20 | — | #1,779 |
| 1924 | 9 | — | #3,150 |
| 1923 | 5 | — | #4,600 |
| 1922 | 8 | — | #3,414 |
| 1921 | 7 | — | #3,728 |
| 1920 | 12 | — | #2,539 |
| 1919 | 12 | — | #2,447 |
| 1918 | 10 | — | #2,803 |
| 1917 | 12 | — | #2,362 |
| 1916 | 10 | — | #2,652 |
| 1915 | 16 | — | #1,843 |
| 1914 | 8 | — | #2,556 |
| 1913 | 8 | — | #2,182 |
| 1912 | 5 | — | #2,749 |
| 1909 | 5 | — | #1,595 |
| 1907 | 6 | — | #1,278 |
| 1895 | 7 | — | #941 |
| 1892 | 5 | — | #1,173 |
| 1889 | 6 | — | #935 |
| 1887 | 6 | — | #882 |
| 1882 | 5 | — | #1,026 |