I know that different denominations have different rules about inter-denominational marriages. Is there a specific term for this kind of marriage?

I'm looking for any term from anywhere. Best case, I'm looking for a term for a marriage specifically between a Catholic and a Protestant. Other similar terms would be acceptable, such as a marriage between a Catholic and non-Catholic, or Christian and non-Christian.

  • Where have you looked? You're likely to find something with a bit of searching. Jan 30, 2016 at 0:34
  • Welcome to Christianity.SE. For a quick overview of what this site is about, please take the Site Tour. Basically, it's a form of interfaith marriage, formerly called "mixed marriages." But this is really a question about language rather than about Christianity. Jan 30, 2016 at 1:35
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    I'm voting to close this question as off-topic because this is basically a language question, not a question about Christianity. Jan 30, 2016 at 1:36
  • I already did searches and was not able to find what I was looking for. Also, this is a question specifically about ecclesiastical terminology, not a general language question. I was hoping there might be a term in Latin used by the Catholic church.
    – haydenmuhl
    Jan 30, 2016 at 4:28
  • What did you search? That might give us a clue about why you're not finding anything. Jan 30, 2016 at 4:57

1 Answer 1


In Catholic Canon Law, there is a term that applies: a mixed marriage.

A mixed marriage is one in which one person is a Catholic and the other has been baptized into another Christian denomination. This isn't specific to Protestants, of course, it applies to any non-Catholic Christian denomination.

  • Well, with the possible exception of the Orthodox, a non-Catholic Christian is Protestant, rather by definition. Jan 30, 2016 at 20:37
  • Catholics are not in full communion with the Orthodox and as such they are not Catholic in the terminology of canon law. The term mixed marriages applies to both protestant and Orthodox with a Catholic spouse.
    – Ken Graham
    Jan 31, 2016 at 0:39
  • And not only to Eastern Orthodox but to Oriental Orthodox as well. Jan 31, 2016 at 14:40
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    @AndrewLeach There's many more besides protestant. There are multiple Orthodox churches, including Eastern and Oriental. Also some would consider Anglican as distinct from Protestantism. One is not Protestant just because they are not Catholic, not by a long shot, not by any correct definition.
    – Joshua
    Jan 31, 2016 at 14:48
  • Well, no; the Orthodox are not Protestant [back to my original comment] but everything which stems from the Reformation is. Perhaps the UK is slightly odd in that we have non-conformists as well, which include Catholics. Jan 31, 2016 at 14:53

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