A bicycle trailer hitch for securing a trailer to a bicycle, the trailer including a hitch arm and the bicycle having a rear wheel including an axle with an axis of rotation and a frame, the bicycle trailer hitch comprising: a hitch ball including a base end connectable to the trailer hitch arm, an opposite end formed as a ball end and a intermediate portion extending therebetween; and a bicycle-mounted hitch portion mountable on the bicycle and including a socket formed to removably retain the ball end of the hitch ball, the socket including an open end, sized to permit the ball end of the hitch ball to pass therethrough and a retainer end formed to retain the ball end therein, the open end being positioned at the forward end of the socket and the retainer end positioned at the rear of the socket such that the ball end is retained in the retainer end when the hitch arm of the trailer is extending out from the hitch behind the bicycle.