A bicycle side chair apparatus includes a frame assembly that further includes a base having a front edge, a rear edge, a first side edge and a second side edge. A seat assembly is attached to and extends upwardly from the base. A wheel is rotatably coupled to the base. The wheel is positioned adjacent to the second side edge. A front bracket is attached to the frame assembly and is configured to removably secure the frame assembly to a bicycle frame between a seat and a pair of handlebars of the bicycle. A rear bracket is attached to the frame assembly and is configured to removably secure the frame assembly to the bicycle frame adjacent to a seat of the bicycle.