法律制度，简称法制，是指一个国家或地区的所有法律原则和规则的总称。法律制度从宏观角度来说，与法系的概念比较接近。而法律多元主义是多种法律制度存在于一个人群和/或地理区域内。

Legal pluralism is the existence of multiple legal systems within one (human) population and/or geographic area. Plural legal systems are particularly prevalent in former colonies, where the law of a former colonial authority may exist alongside more traditional legal systems (cf. customary law).