Abstract: The arrow straightness gauge of this invention has an elongated body of a preselected length. A circular cross-sectional passageway traverses the entire length of the elongated body and provides openings at both ends of the elongated body. The aforementioned arrow shaft has a preselected diameter and a preselected length. The circular cross-sectional passageway is provided with an internal diameter greater than the arrow shaft diameter, such that when the arrow shaft is inserted axial through the circular cross-sectional passage there is established a diametral clearance between the arrow shaft to be tested and the internal diameter of the circular cross-sectional passageway. The circular cross-sectional passageway has a diameter equal to the arrow shaft diameter to be tested plus a measurement in the range of between 0.003 and 0.023 times the arrow shaft diameter to be tested. The elongated body of the arrow shaft straightness gauge has a length no less than 0.