协助自杀，又称加工自杀，指通过一些特定方法，例如药物或设备，促成可能已经没有能力运行自杀行为的死亡意愿者达到目的。

在一些法律规定中，不论是协助的还是自助的“自杀”行为都是不合法的，但是“援助性死亡”属于被认可的范围。因此在一些类似的情况下，有人会采用援助性死亡(aid in dying)或者有尊严的死亡(death with dignity)等词语来替代协助自杀，目的是为了表明这其实不是自杀行为。

Assisted suicide is suicide committed with the aid of another person, sometimes a physician. The term is often used interchangeably with physician-assisted suicide (PAS), which involves a doctor "knowingly and intentionally providing a person with the knowledge or means or both required to commit suicide, including counselling about lethal doses of drugs, prescribing such lethal doses or supplying the drugs." Assisted suicide and euthanasia are sometimes combined under the umbrella term "assisted dying", an example of a trend by advocates to replace the word "suicide" with "death" or ideally, "dying". Other euphemisms in common use are "physician-assisted dying", "physician-assisted death", "aid in dying", "death with dignity", "right to die" "compassionate death", "compassionate dying", "end-of-life choice", and "medical assistance at the end of life".