The baby name Les appears in baby name data for the United States from 1940 to 1978. It was most popular in 1960 with 122 babies given the name.
Over the period shown, Les has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1940 | 20 |
| 1941 | 6 |
| 1943 | 37 |
| 1944 | 5 |
| 1945 | 10 |
| 1946 | 41 |
| 1947 | 41 |
| 1948 | 23 |
| 1949 | 5 |
| 1955 | 25 |
| 1956 | 57 |
| 1957 | 58 |
| 1958 | 86 |
| 1959 | 117 |
| 1960 | 122 |
| 1961 | 107 |
| 1962 | 66 |
| 1963 | 69 |
| 1964 | 40 |
| 1965 | 22 |
| 1966 | 27 |
| 1967 | 18 |
| 1969 | 16 |
| 1970 | 13 |
| 1971 | 8 |
| 1973 | 6 |
| 1978 | 7 |