| Career (United States) | |
|---|---|
| Name: | USS Canonicus |
| Namesake: | Canonicus (c. 1565-1647), a Native American chief of the Narragansett |
| In service: | 3 June 1941 |
| Fate: | Transferred to the Maritime Commission for disposal 30 April 1947 |
| General characteristics | |
| Type: | Harbor tug |
The third USS Canonicus (YT-187) was a United States Navy harbor tug which entered service in 1941 and was discarded in 1947.
Canonicus was placed in service on 3 June 1941. She served in the 1st Naval District and 5th Naval District.
Canonicus was transferred to the Maritime Commission for disposal on 30 April 1947.