Wrist orthosis (11) having a supporting shell (10) that is open in the radial direction for receiving the distal forearm area and having a volar hand support (29) for coming into contact with the palmar surface of the hand and having a closing device (31, 32, 33, 70) for force-locking connection of the wrist orthosis to the wrist area, wherein a dimensionally stable supporting insert that surrounds the wrist area and is designed to conform to the forearm area is provided for lining the supporting shell (10), the supporting insert extending beyond the supporting shell (10) starting from a forearm part with a metacarpal part (73) covering the metacarpal area.