A riding mower includes a mower body frame extending in front-and-rear directions between a pair of left and right rear wheels, a horizontal installation surface defined in an area near the rear wheels, an engine arranged on the installation surface, rearward of axle(s) of the rear wheels, an operators seat arranged forward of the engine, and a fuel tank. The fuel tank includes a front tank portion extending in the front-and-rear directions below the operators seat, and a rear tank portion connected with the front tank portion, extending in mower body front-and-rear directions on one side of the engine in mower body transverse directions, and extending higher than the front tank portion.
