Ronald Leonard "Bucky" Buchanan (b. November 15, 1944 in Montreal, Quebec) is a former professional ice hockey centre who played extensively in the WHA and briefly in the NHL. Buchanan's father, Ralph Buchanan, was also a professional hockey player, and had played two games for the New York Rangers in the 1948–49 NHL season. Buchanan was a member of the Oshawa Generals for three seasons, playing on teams that included Bobby Orr and Wayne Cashman. Buchanan went on to play for the Boston Bruins and St. Louis Blues of the NHL and the Cleveland Crusaders, Edmonton Oilers and Indianapolis Racers of the WHA. After his retirement, Buchanan was briefly the head coach of the Los Angeles Blades of the PHL.