Betti is a rare variant of Betty that was most common in the 1940s and has all but disappeared.
Betti is a girl name. It last appears in U.S. records in 1995. Betti was first reported in SSA data in 1916 and peaked in 1946 (37 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1995 | 7 | — | #10,651 |
| 1985 | 5 | — | #10,835 |
| 1980 | 5 | — | #10,556 |
| 1977 | 6 | — | #8,546 |
| 1975 | 7 | — | #7,245 |
| 1974 | 7 | — | #6,968 |
| 1973 | 11 | — | #4,904 |
| 1972 | 7 | — | #6,630 |
| 1970 | 11 | — | #4,780 |
| 1969 | 12 | — | #4,211 |
| 1967 | 10 | — | #4,327 |
| 1966 | 16 | — | #3,155 |
| 1965 | 14 | — | #3,415 |
| 1964 | 15 | — | #3,387 |
| 1963 | 9 | — | #4,570 |
| 1962 | 14 | — | #3,445 |
| 1961 | 14 | — | #3,469 |
| 1960 | 11 | — | #3,937 |
| 1959 | 19 | — | #2,684 |
| 1958 | 15 | — | #3,098 |
| 1957 | 20 | — | #2,567 |
| 1956 | 25 | — | #2,198 |
| 1955 | 31 | — | #1,909 |
| 1954 | 22 | — | #2,307 |
| 1953 | 22 | — | #2,240 |
| 1952 | 23 | — | #2,131 |
| 1951 | 23 | — | #2,068 |
| 1950 | 14 | — | #2,787 |
| 1949 | 22 | — | #2,071 |
| 1948 | 21 | — | #2,132 |
| 1947 | 33 | — | #1,661 |
| 1946 | 37 | — | #1,440 |
| 1945 | 23 | — | #1,751 |
| 1944 | 24 | — | #1,700 |
| 1943 | 27 | — | #1,626 |
| 1942 | 23 | — | #1,764 |
| 1941 | 20 | — | #1,817 |
| 1940 | 16 | — | #2,043 |
| 1939 | 18 | — | #1,886 |
| 1938 | 18 | — | #1,878 |
| 1937 | 5 | — | #4,316 |
| 1935 | 9 | — | #2,949 |
| 1934 | 14 | — | #2,199 |
| 1933 | 11 | — | #2,556 |
| 1932 | 12 | — | #2,512 |
| 1931 | 8 | — | #3,254 |
| 1930 | 6 | — | #4,093 |
| 1928 | 9 | — | #3,196 |
| 1927 | 10 | — | #3,079 |
| 1926 | 10 | — | #3,071 |
| 1925 | 11 | — | #2,963 |
| 1924 | 7 | — | #4,047 |
| 1923 | 8 | — | #3,686 |
| 1922 | 12 | — | #2,794 |
| 1921 | 7 | — | #4,072 |
| 1920 | 14 | — | #2,480 |
| 1919 | 5 | — | #4,903 |
| 1917 | 8 | — | #3,381 |
| 1916 | 6 | — | #3,974 |