An adjustable bow sight including a sight frame removedly affixed to the bow by a mounting bracket. An elongated sight bar extends forwardly from the sight frame. The sight bar is vertically movable along slide rods within the sight frame by a threaded adjustment screw adapted for manual rotation by an adjustment knob. A visual scale indicative of vertical positioning of the sight bar is provided on the sight frame. A windage unit mounted at the forward end of the sight bar carries a laterally adjustable sighting unit through which the archer views the target.