Constitution Party
- 1910 South African Senate election
- American Constitution Party (Colorado)
- Constitution Party (Egypt)
- Constitution Party (Estonia)
- Constitution Party (United States)
- Constitution Party (United States, 1952)
- Constitution Party of Oregon
- Constitutional Bloc (disambiguation)
- Constitutional Democratic Party
- Constitutional Democratic Party (disambiguation)
- Constitutional Party (Austria)
- Constitutional Party (Costa Rica)
- Constitutional Party (Malta)
- Constitutional Party (Peru)
- Constitutional Party (Spain)
- Constitutional Party (Uruguay)
- Constitutional Union Party (disambiguation)
- Constitutionalism
- Constitutionalist Liberal Party
- Constitutionalist Party of Iran
- Democratic Party (Indonesia)
- Destour
- Junimea
- Kensei Hontō
- Kenseikai
- Kenseitō
- National Constitution Party
- New Constitution Party of Canada
- Progressive Constitutionalist Party (Malta)
- Progressive Constitutionalist Party (Mexico)
- Progressive Party (China)
- Rikken Dōshikai
- Rikken Kaishintō
- Rikken Kokumintō
- Rikken Minseitō
- Rikken Seiyūkai
- Rikken Teiseitō
- Zhi Xian Party