Deby is a very rare variant of Debby that was most common in the 1950s and has all but disappeared.
Deby is a girl name. It last appears in U.S. records in 1979. Deby first appears in 1948 and peaked in 1959 (29 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1979 | 5 | — | #10,575 |
| 1976 | 5 | — | #9,629 |
| 1970 | 7 | — | #6,497 |
| 1969 | 5 | — | #7,723 |
| 1966 | 8 | — | #4,965 |
| 1965 | 7 | — | #5,404 |
| 1964 | 12 | — | #3,924 |
| 1963 | 9 | — | #4,618 |
| 1962 | 16 | — | #3,196 |
| 1961 | 26 | — | #2,375 |
| 1960 | 25 | — | #2,384 |
| 1959 | 29 | — | #2,114 |
| 1958 | 20 | — | #2,594 |
| 1957 | 23 | — | #2,364 |
| 1956 | 15 | — | #3,076 |
| 1955 | 15 | — | #3,005 |
| 1954 | 11 | — | #3,539 |
| 1953 | 7 | — | #4,682 |
| 1952 | 6 | — | #5,043 |
| 1951 | 7 | — | #4,468 |
| 1948 | 5 | — | #5,421 |