The baby name Lempi appears in baby name data for the United States from 1910 to 1921. It was most popular in 1915 with 11 babies given the name.
Over the period shown, Lempi has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1910 | 6 |
| 1911 | 5 |
| 1912 | 5 |
| 1914 | 6 |
| 1915 | 11 |
| 1916 | 6 |
| 1918 | 10 |
| 1919 | 6 |
| 1921 | 5 |