List of ship commissionings in 1955
The list of ship commissionings in 1955 includes a chronological list of ships commissioned in 1955. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.
| Date | Operator | Ship | Class and type | Notes |
| January 24 | ' | Ex-AMS-127, also maintained on the United States Navy Register until 1981 | ||
| February 1 | ' | Recommissioned from reserve | ||
| February 17 | ' | Recommissioned from reserve | ||
| October 1 | ' | - | ||
| October 28 | Ex- |