Holy Ghost Catholic Church, also known as Holy Ghost Mission, is an historic octagon-shaped Roman Catholic church building located at 4300 Lower Kula Road in Waiakoa in the Kula district. It was designed by Father James Beissel and built by his parishioners who were Portuguese from the Azores and the Madeira Islands who had come to work on the local sugarcane plantation. The first mass was celebrated in it in 1895. It was consecrated in 1899 by Bishop Gulstan Ropert, the third vicar apostolic of the Vicariate Apostolic of the Sandwich Islands — now the Roman Catholic Diocese of Honolulu.