This foldable pushchair comprises a chassis having the rear legs fitted with the corresponding wheels, and is characterized in that the support (11) of the wheels (3) is fitted to the lower end of the corresponding rear leg (2) by means of a pin-jointed connection (12) allowing to have said support folded with respect to the leg (2) when folding the pushchair. The supports (11) of the wheels (3) are articulately linked to the rear ends of the two crossed cross members (8 and 9) linking the rear legs (2) to the front legs (6).