Primarily a boy's name · Unisex — 31% girls / 69% boys
→ See names similar to Lennis · Popular names of the 1940s · Boys names starting with L
Rank is among all boys' names registered that year.
| Year | Babies | Rank |
|---|---|---|
| 1912 | 7 | #2,155 |
| 1914 | 9 | #2,373 |
| 1915 | 11 | #2,382 |
| 1916 | 12 | #2,337 |
| 1917 | 25 | #1,418 |
| 1918 | 7 | #3,557 |
| 1919 | 9 | #3,018 |
| 1920 | 14 | #2,291 |
| 1921 | 18 | #1,951 |
| 1922 | 16 | #2,107 |
| 1923 | 17 | #1,988 |
| 1924 | 9 | #3,148 |
| 1925 | 12 | #2,525 |
| 1926 | 25 | #1,498 |
| 1927 | 16 | #2,090 |
| 1928 | 15 | #2,112 |
| 1929 | 17 | #1,898 |
| 1930 | 20 | #1,676 |
| 1931 | 19 | #1,671 |
| 1932 | 13 | #2,155 |
| 1933 | 17 | #1,744 |
| 1934 | 16 | #1,820 |
| 1935 | 14 | #1,994 |
| 1936 | 18 | #1,618 |
| 1937 | 17 | #1,722 |
| 1938 | 18 | #1,655 |
| 1939 | 25 | #1,345 |
| 1940 | 23 | #1,421 |
| 1941 | 25 | #1,357 |
| 1942 | 21 | #1,565 |
| 1943 | 20 | #1,614 |
| 1944 | 18 | #1,660 |
| 1945 | 18 | #1,609 |
| 1946 | 18 | #1,726 |
| 1947 | 32 | #1,313 |
| 1948 | 33 | #1,270 |
| 1949 | 23 | #1,567 |
| 1950 | 22 | #1,595 |
| 1951 | 27 | #1,442 |
| 1952 | 27 | #1,481 |
| 1953 | 30 | #1,394 |
| 1954 | 32 | #1,352 |
| 1955 | 27 | #1,498 |
| 1956 | 23 | #1,668 |
| 1957 | 23 | #1,700 |
| 1958 | 21 | #1,754 |
| 1959 | 15 | #2,162 |
| 1960 | 25 | #1,647 |
| 1961 | 18 | #1,978 |
| 1962 | 17 | #2,005 |
| 1963 | 16 | #2,084 |
| 1964 | 13 | #2,368 |
| 1965 | 17 | #1,965 |
| 1966 | 12 | #2,403 |
| 1967 | 14 | #2,214 |
| 1968 | 17 | #1,999 |
| 1969 | 15 | #2,267 |
| 1970 | 12 | #2,813 |
| 1971 | 12 | #2,912 |
| 1973 | 5 | #5,557 |
| 1974 | 7 | #4,434 |
| 1975 | 10 | #3,571 |
| 1976 | 8 | #4,247 |
| 1977 | 14 | #2,991 |
| 1978 | 5 | #6,376 |
| 1980 | 6 | #5,953 |
| 1981 | 10 | #4,023 |
| 1983 | 9 | #4,350 |
| 1984 | 7 | #5,318 |
| 1985 | 9 | #4,544 |
| 1986 | 6 | #6,393 |
| 1988 | 5 | #8,020 |
| 1989 | 6 | #7,526 |
| 1991 | 5 | #9,050 |
| 1997 | 5 | #10,185 |
| 2001 | 8 | #8,016 |
| 2012 | 5 | #13,423 |
| 2013 | 5 | #13,276 |