Agaricus bresadolanus is a species of fungus in the genus Agaricus. It was described by Hungarian mycologist Gábor Bohus in 1969. A rare species, it has been recorded in Asia and southern Europe, where it fruits singly or in groups along paths and in grassy area of deciduous woodland. It spores are ellipsoid and lack a germ pore, with dimensions of 5.5–7.5 by 4.0–5.0 µm.