Polyamory (from Greek πολύ poly, "many, several", and Latin amor, "love") is typically the practice of, or desire for, intimate relationships where individuals may have more than one partner, with the knowledge and consent of all partners.[1] [2]It has been described as "consensual, ethical, and responsible non-monogamy".[3][4][5] However, the meaning of polyamory is also an issue of ongoing debate.[4] For example, although polyamory is typically defined as a relationship practice or approach to relationships,[1][2][6] some believe that it should also be considered an orientation or identity (analogous to sexual orientation or gender identity).[7][8]

Polyamory is sometimes used in a broader sense, as an umbrella term that covers various forms of consensual multi-partner relationships, or forms of consensual non-exclusive sexual and/or romantic relationships. Polyamorous arrangements are varied,[9] reflecting the choices and philosophies of the individuals involved, but they tend to emphasize certain themes or values, such as love, intimacy, honesty, integrity, equality, communication, and commitment.[4][2] As of July 2009, it was estimated that more than 500,000 polyamorous relationships existed in the United States.[10]

People who identify as polyamorous typically reject the view that sexual and relational exclusivity are necessary for deep, committed, long-term loving relationships.[6] Those who are open to, or emotionally suited for, polyamory may embark on a polyamorous relationship when single or already in a monogamous or open relationship.