The list of ship decommissionings in 1964 includes a chronological list of all ships decommissioned in 1964.
| Operator | Ship | Class and type | Fate | Other notes | |
|---|---|---|---|---|---|
| 20 July | United States Navy | Thetis Bay | Casablanca class amphibious assault ship | Scrapped |
| Ship events in 1964 | |||||||||||
| Ship launches: | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |
| Ship commissionings: | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |
| Ship decommissionings: | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |
| Shipwrecks: | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |