CCGS Samuel Risley[note 1] is a Canadian Coast Guard icebreaker and buoy tender assigned to the Great Lakes area (Central and Arctic Region).

[3] The ship is powered by four Wärtsilä Vasa 12V22 12-cylinder geared Diesel Engines driving two controllable pitch propellers that create 6,595 kW (8,844 hp).

[8] In April, Samuel Risley was one of four icebreakers sent to rescue ten commercial vessels trapped in ice near Whitefish Point, Michigan.

[10] On 28 December 2017, Samuel Risley, in concert with the United States Coast Guard vessel USCGC Biscayne Bay, freed the lakers Edgar B. Speer and Walter J. McCarthy Jr. that had become stuck in the ice on the St. Marys River below Sault Ste.

[11] Samuel Risley made its maiden voyage to the Arctic Ocean during the 2018 sailing season, leaving Quebec on 11 July 2018.

[14] In January 2025, Samuel Risley was one of several ships deployed to help free the bulk carrier Manitoulin, which was stuck in ice near Buffalo, New York.