USCGC Bristol Bay (WTGB-102) is the second vessel of the Bay-class tugboats built in 1978 and operated by the United States Coast Guard.

[1] The ship was named after the body of water formed by the Alaskan peninsula, which emptied into the Bering Sea.

In August 1991, Bristol Bay became the first Bay-class tugboat to receive a barge specially designed to perform aids to navigation work.

USCGC Hollyhock and Bristol Bay were deployed for ice breaking at the St. Clair River, on 25 February 2019.

[3] On 3 February 2021, Bristol Bay and CCGS Griffon were both dispatched to break up ice at the St. Clair River.