List of electoral systems


An electoral system is a set of rules that determine how elections and referendums are conducted and how their results are determined.
Some electoral systems elect a single winner, while others elect multiple winners, such as members of parliament or boards of directors.
The study of formally defined electoral methods is called social choice theory or voting theory, and this study can take place within the field of political science, economics, or mathematics, and specifically within the subfields of game theory and mechanism design.

List of electoral systems by types

Key

Name and other names of the system 'Type of representation: the most common division of electoral systems