The baby name Lannie appears in baby name data for the United States from 1910 to 1970. It was most popular in 1949 with 137 babies given the name.
In the later years of this period, Lannie has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1910 | 15 |
| 1915 | 10 |
| 1916 | 5 |
| 1917 | 21 |
| 1918 | 5 |
| 1921 | 6 |
| 1922 | 11 |
| 1924 | 10 |
| 1925 | 6 |
| 1926 | 26 |
| 1928 | 20 |
| 1929 | 15 |
| 1932 | 5 |
| 1934 | 20 |
| 1935 | 32 |
| 1940 | 6 |
| 1941 | 30 |
| 1942 | 8 |
| 1943 | 5 |
| 1944 | 12 |
| 1947 | 15 |
| 1948 | 6 |
| 1949 | 137 |
| 1950 | 57 |
| 1951 | 46 |
| 1952 | 22 |
| 1953 | 5 |
| 1954 | 43 |
| 1955 | 26 |
| 1956 | 26 |
| 1963 | 28 |
| 1965 | 6 |
| 1970 | 6 |