Mardy is a very rare variant of Marty that was most common in the 1950s and has all but disappeared.
Mardy is predominantly a boy name. It last appears in U.S. records in 1990. Mardy was first reported in SSA data in 1948 and peaked in 1960 (14 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1990 | 6 | — | — | #7,749 |
| 1989 | 5 | — | — | #8,747 |
| 1984 | 6 | — | — | #6,057 |
| 1980 | 5 | — | — | #6,885 |
| 1979 | 7 | — | — | #5,169 |
| 1977 | 8 | — | — | #4,434 |
| 1976 | 9 | — | — | #3,897 |
| 1975 | 6 | — | — | #5,205 |
| 1974 | 6 | — | — | #5,013 |
| 1973 | 10 | — | — | #3,351 |
| 1972 | 6 | — | — | #4,766 |
| 1971 | 12 | — | — | #2,917 |
| 1970 | 11 | — | — | #3,002 |
| 1969 | 9 | — | — | #3,231 |
| 1968 | 7 | — | — | #3,558 |
| 1967 | 5 | — | #7,439 | — |
| 1965 | 11 | — | — | #2,567 |
| 1964 | 10 | — | — | #2,773 |
| 1963 | 15 | — | #5,130 | #3,534 |
| 1962 | 12 | — | #5,627 | #4,426 |
| 1961 | 15 | — | #7,176 | #2,827 |
| 1960 | 14 | — | — | #2,272 |
| 1959 | 5 | — | — | #4,355 |
| 1958 | 6 | — | — | #3,789 |
| 1957 | 17 | — | #5,193 | #2,755 |
| 1956 | 15 | — | #4,699 | #3,415 |
| 1955 | 13 | — | #6,388 | #3,118 |
| 1954 | 5 | — | — | #4,166 |
| 1953 | 6 | — | #5,429 | — |
| 1950 | 9 | — | #3,847 | — |
| 1949 | 8 | — | — | #2,934 |
| 1948 | 6 | — | #5,037 | — |