Lists of groups with specific numbers of members

Lists of particular cardinality are common in religion, folklore and mythology, and this category collects many of them. Also included are groups in arts and entertainment (both fictional characters and performers or artists) and in history, and groups of abstract concepts.

Criteria for inclusion: In order to be included in these lists, a group should be well known as a group, rather than being loosely associated people or concepts which happen to total to the relevant number.