A pet carrier includes two half-shells of substantially identical shape and sizes, to be arranged so that they mutually face the respective concavities, the half-shells forming the two halves of a carrier. The two half-shells, once arranged mutually on top of each other, form a substantially parallelepiped-shaped structure, at least one of the two half-shells having a resealable gap that can be closed by a door, or a grating or the like. The carrier also includes a device allowing the mutual reversible fastening of the two half-shells. The two half-shells are substantially symmetrical with respect to a plane that intersects side faces of the carrier along a diagonal thereof. The door, the grating or the like extends for the most part in correspondence with one of the largest faces of the half-shell, the door being reversibly fastened to the half-shell.
