| Unit Name: | 594th Engineer Boat and Shore Regiment |
| Dates: | 1943–1946 |
| Country: |  United States |
| Branch: | United States Army Corps of Engineers |
| Type: | Engineer battalion |
| Command Structure: | 4th Engineer Special Brigade |
| Battles: | New Guinea campaignNew Britain campaignPhilippines campaign |
The 594th Boat and Shore Regiment was a military engineer unit in the United States Army. The regiment served during World War II and was also known as the 594th Engineer Amphibian Regiment.
The 594th Boat and Shore Regiment was activated as the 594th Engineer Amphibian Regiment at Fort Devens, Massachusetts on 1 February 1943, as part of the 4th Engineer Special Brigade.