USCGC Yellowfin (WPB-87319) is an 87-foot (27 m) long Marine Protector-class patrol boat of the United States Coast Guard built by Bollinger Shipyards in Lockport, Louisiana.

She was designed with a stern launching ramp that allows her to deploy and retrieve a high-speed pursuit boat without first coming to a stop.

In September 2017 Yellowfin was one of the 13 Coast Guard cutters that was tasked to assist Puerto Rico respond to Hurricane Maria.

[2][3] On August 30, 2018, Yellowfin and USS Zephyr intercepted a go-fast carrying four drug smugglers from the Dominican Republic, and 32 kilograms (71 lb) of cocaine.

[1][4] On November 30, 2018, Yellowfin took part in a remembrance ceremony in Charleston, South Carolina, for those lost in the wreck of the pleasure craft Morning Dew, which sank with all hands on December 29, 1997.