假记忆体综合症（False memory syndrome, FMS）描述的是一个人的身份和关系受事实上错误却被强烈相信的记忆所影响的状况。这个词语最先由Peter_J._Freyd提出，后来由假记忆体综合症基金会（FMSF）发扬光大。这个名词不被任何医学手册所编入。（如ICD-10或DSM-5）认为是一种精神病。然而，记忆可由外在影响而被重塑则是学界公认的原则。

假记忆也许是恢复记忆疗法-在90年代同样由FMSF定义的词语，描述了一大类倾向于创造交谈机会的疗法-的结果。一些在这种理论的发生中具影响力的人物有法庭心理学家Ralph Underwager，心理学家Elithabeth Loftus和社会学家Richard Ofshe。假记忆体综合征不被认为是一个正式的心理健康的诊断，但是记忆能被外界影响改变的原理被科学家压倒性的接受了。

False memory syndrome (FMS) describes a condition in which a person's identity and relationships are affected by memories that are factually incorrect but that they strongly believe. Peter J. Freyd originated the term, which the False Memory Syndrome Foundation (FMSF) subsequently popularized. The term is not recognized as a mental disorder in any of the medical manuals, such as the ICD-10 or the DSM-5; however, the principle that memories can be altered by outside influences is overwhelmingly accepted by scientists.