Abstract: New seat support for a public transport vehicle and seat equipped with this support. The invention relates to a seat support for a public transport vehicle, intended to be mounted overhung on a side wall of this vehicle. As seen in section through a vertical plane perpendicular to the sidewall, the framework of this support has a generally C-shaped cross-section. The upper branck of the C is intended to serve as a base for a seat, the lower branch of the C rests on the floor of the vehicle and is fixed to the latter, and the verticle part of the C, which joins the branches together, is designed to bear against the side wall of the vehicle and to be fixed to the latter.