A golf swing training apparatus includes a frame having a crosspiece interconnecting the upper ends of a pair of generally-parallel-spaced elongate supports, to thereby define a first frame portion extending along a generally horizontal first axis when the frame stands on a playing surface. Two axially-spaced, rigid cantilevered arms are mounted on the first frame section such that the free end of each arm is rotatable in a respective generally-vertical reference plane while resisting "lateral" horizontal movement. In use, the apparatus is positioned generally behind or, most preferably, generally in front of a golfer as the golfer addresses a golf ball, with each arm extending on a respective side of the golfer's head. During a swing, undesired lateral head movement is indicated by contact between the golfer's head and an arm, with the arm resisting such lateral movement to provide a proportional tactile feedback regarding such lateral head movement.