Can Catholics marry non-Catholics?
In short: Yes, Catholics may marry non-Catholics, but the Church requires either permission (when the other person is a baptized Christian) or a dispensation (when the other person is not baptized), along with specific promises from the Catholic partner.
The Catholic Church permits Catholics to marry people of other faiths, but it does not treat such a marriage as a simple formality. Canon law distinguishes two situations. A mixed marriage is a marriage between a Catholic and a baptized non-Catholic Christian — for example, a Protestant, Anglican, or Orthodox believer. A marriage with disparity of cult is a marriage between a Catholic and someone who has never been baptized. Both situations require formal Church involvement before the wedding can take place.
For a mixed marriage, the Catholic must obtain the permission of the local bishop (or his delegate). For a marriage with disparity of cult, a dispensation is required — a higher-level formal exemption — because unbaptized status is an impediment that would otherwise render the marriage invalid in Church law. In practice, parish priests handle these requests routinely during marriage preparation, and they are granted whenever there is a just and reasonable cause.
Before permission or dispensation is granted, the Catholic party must make two sincere promises: to remain faithful to the Catholic faith, and to do everything in their power to raise any children of the marriage as Catholics. The non-Catholic partner must be made aware of these promises, though they are not required to make them. Both parties receive instruction on the Church's understanding of marriage — that it is a lifelong, faithful, and fruitful union. These requirements are not obstacles placed in the way of love; they are the Church's way of protecting both spouses and any children from the real spiritual tensions that can arise in such marriages.
The Catechism is honest about the difficulties. It notes that the difficulties of mixed marriages must not be underestimated, because the spouses risk experiencing the tragedy of Christian disunity even in the heart of their own home. Different beliefs about faith, sacraments, and the education of children can become genuine sources of tension. At the same time, the Catechism is far from discouraging: it teaches that difference of confession does not constitute an insurmountable obstacle for marriage when spouses are sincerely open to learning from one another the way in which each lives in fidelity to Christ.
When one spouse is not Christian, the Catholic partner takes on a particular spiritual role within the marriage. St Paul writes that the unbelieving husband is made holy through his believing wife, and the unbelieving wife is made holy through her believing husband (1 Corinthians 7:14). The Church sees sincere married love, patient virtue, and perseverance in prayer as genuine paths through which a non-believing spouse may, in time, come freely to faith — and considers it a great joy for the Christian spouse and for the Church if this should lead to a free conversion. Marriage across faith lines is not a compromise of belief; lived well, it can become a quiet witness to the Gospel.
If you are discerning marriage and want to find a parish near you for marriage preparation, you can find a Catholic church near you. You may also wish to explore the sacramental life that forms the foundation of Catholic marriage — including regular confession and the Mass.
What the Catechism says
In many countries the situation of a mixed marriage (marriage between a Catholic and a baptized non-Catholic) often arises. It requires particular attention on the part of couples and their pastors. A case of marriage with disparity of cult (between a Catholic and a nonbaptized person) requires even greater circumspection.
Difference of confession between the spouses does not constitute an insurmountable obstacle for marriage, when they succeed in placing in common what they have received from their respective communities, and learn from each other the way in which each lives in fidelity to Christ. But the difficulties of mixed marriages must not be underestimated. They arise from the fact that the separation of Christians has not yet been overcome. the spouses risk experiencing the tragedy of Christian disunity even in the heart of their own home. Disparity of cult can further aggravate these difficulties.
According to the law in force in the Latin Church, a mixed marriage needs for liceity the express permission of ecclesiastical authority. In case of disparity of cult an express dispensation from this impediment is required for the validity of the marriage. This permission or dispensation presupposes that both parties know and do not exclude the essential ends and properties of marriage and the obligations assumed by the Catholic party concerning the baptism and education of the children in the Catholic Church.
In marriages with disparity of cult the Catholic spouse has a particular task: 'For the unbelieving husband is consecrated through his wife, and the unbelieving wife is consecrated through her husband.' It is a great joy for the Christian spouse and for the Church if this 'consecration' should lead to the free conversion of the other spouse to the Christian faith. Sincere married love, the humble and patient practice of the family virtues, and perseverance in prayer can prepare the non-believing spouse to accept the grace of conversion.
In Sacred Scripture
- 1 Corinthians 7:14 — Paul teaches that the believing spouse sanctifies the unbelieving partner — the scriptural basis for CCC 1637 and the Church's view of the Catholic spouse's particular mission in a mixed or disparity-of-cult marriage.
- 1 Corinthians 7:12-13 — Paul instructs a believer married to an unbeliever not to separate if the unbeliever is willing to live together, affirming the validity and goodness of such marriages.
- Genesis 2:24 — The foundational Scripture on marriage as a lifelong union — a man leaves his father and mother and clings to his wife, and the two of them become one body — which applies to all valid marriages regardless of the faith background of the spouses.
Frequently Asked Questions
Is a Catholic who marries a non-Catholic in a civil ceremony still married in the eyes of the Church?
No. Catholics are bound by canonical form, meaning they must ordinarily marry before a priest or deacon and two witnesses in order for the marriage to be valid in Church law. A civil ceremony alone, without a dispensation from canonical form granted by the bishop, does not constitute a valid Catholic marriage. A Catholic in this situation should speak with a priest about their circumstances.
Does the non-Catholic spouse have to promise to raise the children Catholic?
No. Only the Catholic party is required to make that promise. The non-Catholic must be told about the Catholic's promise and must not actively prevent it, but they are not required to make any promises of their own. Canon 1125 makes clear that the obligation rests with the Catholic spouse.
Can a Catholic marry someone of a completely different religion, such as a Muslim or a Hindu?
Yes, with a dispensation from the impediment of disparity of cult, which is required for marriages between a Catholic and an unbaptized person. This dispensation is needed for the validity of the marriage because the Church recognises the greater spiritual challenges involved. The Catholic must still promise to remain in the faith and to raise children Catholic, and both parties must understand the Church's teaching on the nature of marriage.