It was hypothesized that catastrophic thinking that focused on negative religious conflict, would be associated with symptoms of panic disorder. Sixty women were classified into three groups: those with panic disorder, those in psychotherapy for issues other than panic disorder, and those who were asymptomatic. Religious conflict was measured with the Survey of Attitudes Towards Religion and Philosophy of Life. The State-Trait Anxiety Inventory, the Rational Behavior Inventory, and the Illness Attitude Scale were used to validate group membership. Results indicated that the panic disorder group had significantly higher scores on negative religious conflict than either those in therapy or those who were asymptomatic.