USCGC Decisive (WMEC-629) was a United States Coast Guard medium endurance cutter.

Decisive's keel was laid on 12 May 1967, at the Coast Guard Yard in Baltimore, Maryland.

[1] It is currently undergoing modernisation to be transferred to the Sri Lanka Navy.

[2] This article incorporates public domain material from USCGC Decisive decommissioned after 55 years of service.

This article about a specific ship or boat of the United States Armed Forces is a stub.