Federalist (disambiguation)
- Anti-Federalist
- Anti-Federalist League
- Breton Federalist League
- Democratic Party of Federalists
- Federal (disambiguation)
- Federal Union (disambiguation)
- Federalism
- Federalism (disambiguation)
- Federalist Alliance
- Federalist Era
- Federalist Italian League
- Federalist Party
- Federalist Society
- Federalist Unity Party
- Federalist architecture
- Federalist revolts
- Federalista Party
- Federation (disambiguation)
- Hungarian Federalist Party
- Maryland Federalist
- The Federalist
- The Federalist (website)
- The Federalists
- Turkic Federalist Party
- Tuscan Federalist Alliance
- Union of Federalist Nationalists of Congo
- Union of Federalists and Independent Republicans
- Yale Political Union