Polygamous, polyandrous and polyamorous relationships and the concept of Christian marriage The main task of the article was to conduct a comparative analysis of polygamous, polyandrous and polyamorous relationships with the concept of Christian marriage. Polygamy, or polygamy, raises a lot of controversy. In polygamy, the most important are the physical aspects, but people who decide to create such relationships are also motivated by tradition, religious rituals and coercion from families. We can also talk about polyandrous relationships as a form of polygamy. These relationships arise when a woman has several husbands at the same time. Polyandry mainly concerns marginalized social groups. Another type of relationship is polyamorous relationships. They are based on romantic love and emotional closeness. Although sexual contacts are possible. Polyamory is supposed to free a person from the pressure of imposed norms and rules subordinated to monogamy, thereby ensuring freedom of choice and a sense of well-being. In this context, it should be emphasized that a Christian marriage has the following features: love, sacrifice, fidelity, mutual respect, forgiveness and prayer.