To provide a game ball dispenser capable of dealing with a newly provided game machine without changing its attaching position when changing the forward protruding quantity of the game machine to the ball dispenser by the exchange of the game machine, or the like.

In a ball dispenser (1) provided with a front panel (3) adjacent to the side of a game machine (G) having a ball receiving part (Ga), supporting parts (7 and 7') each fixing one end on the relevant front panel (3), turning mechanisms (9) provided on the other ends of the relevant supporting parts (7 and 7') and discharge nozzles (11 and 11') which can be horizontally turned by the relevant turning mechanisms (9), the relevant supporting parts (7 and 7') are equipped with extension mechanisms (7a, 7b and 7c) which can be extended forwards just for a component corresponding to the forward protruding length of the relevant ball receiving part (Ga) to the relevant front panel (3). The discharge nozzles (11 and 11') are moved forwards by operating the extension mechanisms (7a, 7b and 7c) to detour the protruded portion of the game machine (G) protruded forwards. Thus, the ball dispenser (1) can deal with the newly provided game machine (G) without changing its attaching position.