the practice or desire for intimate relationships with more than one person, with the informed consent of all partners involved. A form of non-monogamy, people that engage in polyamory are known as polyamorous.

A polyamorous relationship may be a relationship between three or more people which each other, or an open relationship.

This is typically different from swinging (although polyamorous people may also be swingers), where the focus is on sexual activity, rather than deep romantic and/or emotional bonds outside of the relationship.