斯德哥尔摩症候群（英语：Stockholm syndrome；瑞典语：Stockholmssyndromet）又称为人质情结、人质综合症，是一种心理学现象，是指犯罪的被害者对于加害者产生情感、同情加害者，认同加害者的某些观点和想法，甚至反过来帮助加害者的一种情结。这些情感被认为是不理性的、滥用同理心 斯德哥尔摩症候群可以被看作是一种创伤羁绊，不一定只发生在人质身上，只要加害者对被害者实施骚扰、威胁、SM、虐待、恐吓等，都可能使被害者对加害者产生强烈的情感 。根据弗洛伊德的理论 ，斯德哥尔摩症候群是一种自我防卫机制，当受害者相信加害者的想法时，他们会觉得自己不再受到威胁。斯德哥尔摩症候群并非正式精神疾病名词。

Stockholm syndrome, or capture-bonding, is a psychological phenomenon described in 1973 in which hostages express empathy and sympathy and have positive feelings toward their captors, sometimes to the point of defending and identifying with the captors. These feelings are generally considered irrational in light of the danger or risk endured by the victims, who essentially mistake a lack of abuse from their captors for an act of kindness. The FBI's Hostage Barricade Database System shows that roughly eight percent of victims show evidence of Stockholm syndrome.