Abstract: The pendulum crosshair for a weapon sight incorporates a thin, rigid wire pivotally suspended at its upper end to a point at or immediately above the peripheral end point of the fixed vertical crosshair in the reticle of a weapon sight. If the weapon, and thus the sight, is tilted or canted from the vertical when aiming, the pendulum crosshair will misalign with the fixed vertical crosshair in the sight to indicate to the shooter that the weapon is canted. This allows the shooter to correct the cant or tilt of the weapon to avoid the lateral displacement of the shot that would otherwise occur due to lateral displacement of the elevation correction for the sight line.