《好撒马利亚人法》（Good Samaritan law）在美国和加拿大，是给伤者、病人的自愿救助者免除责任的法律，目的在使见义勇为者做好事时没有后顾之忧，不用担心因过失造成伤亡而遭到追究，从而鼓励旁观者对伤、病人士施以帮助。该法律的名称来源于《圣经》中耶稣所做的好撒马利亚人的著名比喻。

在其他国家和地区（例如意大利、日本、法国、西班牙，以及加拿大的魁北克），好撒马利亚人法要求公民有义务帮助遭遇困难的人（如联系有关部门），除非这样做会伤害到自身。德国有法例规定「无视提供协助的责任」是违法的，在必要情况下，公民有义务提供急救，如果善意救助造成损害，则提供救助者可以免责。在德国，必须有紧急救助知识，才能获取驾驶执照。

Good Samaritan laws offer legal protection to people who give reasonable assistance to those who are, or who they believe to be, injured, ill, in peril, or otherwise incapacitated. The protection is intended to reduce bystanders' hesitation to assist, for fear of being sued or prosecuted for unintentional injury or wrongful death. An example of such a law in common-law areas of Canada: a good Samaritan doctrine is a legal principle that prevents a rescuer who has voluntarily helped a victim in distress from being successfully sued for wrongdoing. Its purpose is to keep people from being reluctant to help a stranger in need for fear of legal repercussions should they make some mistake in treatment. By contrast, a duty to rescue law requires people to offer assistance, and holds those who fail to do so liable.