USS Hawkbill (SSN-666), a Sturgeon-class attack submarine, was the second ship of the United States Navy to be named for the hawksbill, a large sea turtle.

[citation needed] The contract to build Hawkbill was awarded to the Mare Island Division of San Francisco Bay Naval Shipyard in Vallejo, California, on 18 December 1964 and her keel was laid down there on 12 September 1966.

[citation needed] In 1983, Hawkbill made a Western Pacific cruise, under the command of George Roletter, with stops at Yokosuka, Japan; Subic Bay, the Philippines; and Hong Kong.

[citation needed] Hawkbill made a dependent cruise from Lahaina, Maui, Hawaii to home port in Pearl Harbor.

In early 1984, Hawkbill deployed to the Arctic, undertaking an 87-day excursion under the polar ice cap which included visits to Chinhae, South Korea; and Guam.