USCGC Steadfast (WMEC-623) was a United States Coast Guard medium endurance cutter in commission for 56 years.

Steadfast completed over 330 Search and Rescue cases, interdicted over 1.6 million pounds of marijuana and 27,700 pounds of cocaine, seized over 65 vessels, and stopped over 3500 undocumented migrants on the high seas from entering the United States.

[4] USCGC Steadfast completed her final Coast Guard patrol on December 18, 2023[5] and was decommissioned in Astoria on February 1, 2024 after 56 years of service.

Upon decommissioning the ship entered Excess Defense Article status and proceeded to Baltimore, Maryland where she was made available to sale to other countries via the Coast Guard's Foreign Military Sales Program.

[6] On August 3, 2024 the acting director-general of the Malaysian Maritime Enforcement Agency (MMEA), Vice-Admiral Datuk Saiful Lizan Ibrahim, announced that Steadfast was being prepared in Baltimore for MMEA service and was expected in Malaysia in the first quarter of 2025.