Most of the time, people is the correct word to choose as a plural for person. Persons is archaic, and it is safe to avoid using it, except in legal writing, which has its own traditional language. Peoples is only necessary when you refer to distinct ethnic groups (for example, within the same region).

The correct plural possessive form is “people’s.” The rule is to take the plural form of the noun and add an “‘s.” “Peoples'” is incorrect as the plural possessive form of “person.” In rare circumstances, you might find it works to refer to a group of people within a community.

People’s is the singular possessive form of people. Peoples’ is the plural possessive form of People. Peoples or People’s or Peoples’ are all pronounced the same way. Because “Peoples” is usually singular, people’s’ is usually correct.

People’s and peoples’ are possessive noun forms. While people’s is the possessive of the word people, peoples’ is the possessive of the word peoples – the plural of people. Use people’s when implying ownership of a collective group of humans belonging to a particular nation, community, or ethnicity.