an apparatus for practicing golf putting strokes including a putting surface member for receiving a golf ball to be putted and a swing path defining member which extends angularly from the putting surface part and lies in a plane which defines a normal and desired putter swing path . the swing path defining part is laterally offset from the intended swing path of the putter to provide a person using the apparatus with a visual indication of a normal swing path to serve as a guide while making unfettered practice swings with the putter . the swing path defining member includes an unobstructed planar member and a flange which is mounted on the putting surface member and supports the unobstructed planar member at an angle of substantially 72 ° with respect to the putting surface member .