Is there a Saint Regan

There is no recognized saint named Regan in the Catholic Church. The process of canonization, or declaring someone a saint, involves a thorough investigation of the individual's life and miracles attributed to them. Without such a formal recognition, there is no Saint Regan in the official list of Catholic saints. It is possible that there may be individuals named Regan who are venerated locally or in other Christian traditions, but they would not be officially recognized as saints in the Catholic Church.