Preferential voting

Preferential voting or preference voting (PV) may refer to different election systems or groups of election systems:

• Ranked voting methods, all election methods that involve ranking candidates in order of preference (American literature)
  • Optional preferential voting
  • Instant-runoff voting, referred to as "preferential voting" in Australia and as "ranked choice voting" in United States, is one type of ranked voting method.
    • Contingent vote (the top-two variant of IRV)
  • Single transferable vote (referred to as "preferential voting" in Australia)
  • Positional voting
    • Borda count (the most common form of positional voting)
  • Open list proportional representation, sometimes known as "preferential voting" in Europe and nations such as Sri Lanka
  • Bucklin voting, which was sometimes known as "preferential voting" when used in the United States
• Proportional voting methods