Lloyd Tramblyn "Farmer" Cook was a Canadian professional ice hockey defenceman. He played for the Vancouver Millionaires/Maroons and Spokane Canaries of the Pacific Coast Hockey Association and for the Boston Bruins of the National Hockey League. He won the Stanley Cup in 1915 with the Millionaires and was named to the PCHA first all-star team three times.

The Pacific Coast Hockey Association (PCHA) was a professional ice hockey league in western Canada and the western United States, which operated from 1911 to 1924 when it then merged with the Western Canada Hockey League (WCHL). The PCHA was considered to be a major league of ice hockey and was important in the development of the sport of professional ice hockey through its innovations.