The men's eight event was a rowing event conducted as part of the 1964 Summer Olympics programme. It was held from 12 to 15 October at the Toda Rowing Course. There were 14 boats (126 competitors) from 14 nations, with each nation limited to a single boat in the event. The event was won by the United States, returning the top of the podium after losing their eight-Games winning streak with a fifth-place finish in 1960; it was the nation's 11th overall victory in the men's eight. The defending champions, the United Team of Germany, took silver; the Germans defeated the United States in the opening round but lost the rematch in the final after the Americans advanced through the repechage. Czechoslovakia repeated as bronze medalists.