It is an object of the invention to provide a spiral gasket that has improved conformability irrespective of the state of a gap between flanges provided at joints and that is capable of exhibiting sufficient sealability for those flanges. The present invention provides a spiral gasket in which a laminate of a hoop member made of metal and a filler member is wound and integrated so as to have an opening at the center, wherein the hoop member has a cross-sectional shape with a bent portion, and V expressed by an equation (I) below is 0.5 to 2.4, where a bending angle of the hoop member at the bent portion is [alpha] (degree), and a radius of curvature of the hoop member at the bent portion is r (mm).