This study examined the relationship between Christian religious consciousness (CFC) and subjective well-being for Japanese Christians. Members of the Roman Catholic Church (status of denomination: Believers, n＝58; Leaders, n＝61) and of the A subgroup of the Holiness Church (status of denomination: Believers, n＝646; leaders, n＝102) participated in the research. Based on factor analysis, we developed a scale of CFC that contained three factors: “Christian doctrine-based belief,” “norms of religious activities,” and “relationship with other church members.” Hierarchical multiple regression analysis on CFC and subjective well-being showed that the people who had high “Christian doctrine-based belief” or a high “relationship with other church members” have high subjective well-being, and that they were partially influenced by subjective well-being among denominations. However well-being was not influenced by status of denomination. These results indicate that subjective well-being rests largely on CFC, although a small portion of it rests on the type of denomination.