Abstract: A bicycle trailer hitch for joining a trailer, having a trailer tongue, to a bicycle, having a bicycle frame and a rear wheel, including a rear-wheel axle having an axis-of-rotation therethrough, mounted on a rear wheel mounting structure of the bicycle frame, includes a hitch mount secured to the rear axle of the bicycle, including a frame-contacting member mounted on the bicycle frame; and a hitch mount body rotatably mounted on said frame-contacting member; a hitch-mount retainer mechanism for securing said hitch mount to the bicycle frame; and a hitch connector fixed to the trailer tongue and removably receivable on said hitch mount body.