Jannis is a rare variant of Janis that was most common in the 1940s and has all but disappeared.
Jannis is a girl name. It last appears in U.S. records in 2009. Jannis first appears in 1933 and peaked in 1947 (25 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2009 | 8 | 8 | #12,955 |
| 1994 | 6 | — | #12,417 |
| 1988 | 5 | — | #12,560 |
| 1973 | 5 | — | #8,923 |
| 1971 | 8 | — | #6,235 |
| 1966 | 5 | — | #6,977 |
| 1964 | 7 | — | #5,686 |
| 1963 | 16 | — | #3,236 |
| 1962 | 8 | — | #5,040 |
| 1961 | 7 | — | #5,520 |
| 1960 | 17 | — | #3,032 |
| 1959 | 9 | — | #4,436 |
| 1958 | 10 | — | #4,052 |
| 1957 | 14 | — | #3,206 |
| 1956 | 15 | — | #3,114 |
| 1955 | 10 | — | #3,902 |
| 1954 | 14 | — | #3,075 |
| 1953 | 12 | — | #3,355 |
| 1952 | 15 | — | #2,862 |
| 1951 | 18 | — | #2,425 |
| 1950 | 12 | — | #3,140 |
| 1949 | 18 | — | #2,370 |
| 1948 | 16 | — | #2,541 |
| 1947 | 25 | — | #1,967 |
| 1946 | 14 | — | #2,662 |
| 1945 | 9 | — | #3,245 |
| 1944 | 10 | — | #3,027 |
| 1943 | 13 | — | #2,624 |
| 1942 | 11 | — | #2,896 |
| 1941 | 8 | — | #3,381 |
| 1940 | 10 | — | #2,836 |
| 1939 | 8 | — | #3,275 |
| 1938 | 10 | — | #2,817 |
| 1937 | 15 | — | #2,135 |
| 1936 | 9 | — | #2,966 |
| 1934 | 8 | — | #3,298 |
| 1933 | 5 | — | #4,519 |