Since 1900, a total of eight registered provincial parties have existed in Prince Edward Island.
See also: 2023 Prince Edward Island general election.
| Name | Founded | Ideology | Leader | MLAs | Progressive Conservative Party of Prince Edward Island | 1851 | Conservatism | Dennis King | 21 | Prince Edward Island Liberal Party | 1873 | Liberalism | Hal Perry (interim) | 3 | Green Party of Prince Edward Island | 2005 | Green politics | Karla Bernard (interim) | 3 | ||
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| Name | Founded | Ideology | Leader | MLAs | New Democratic Party of Prince Edward Island | 1961 | Social democracy | Michelle Neill | 0 | Island Party | 2010 (original), 2022 (relaunch)[1] | Environmentalism Direct democracy Green conservatism | Vacant | 0 | ||
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