| Colorcode: | red |
| Politics XXI | |
| Native Name: | Política XXI |
| Predecessor: | Portuguese Democratic Movement |
| Merged: | Left Bloc |
| Think Tank: | Fórum Manifesto |
| Headquarters: | Lisbon |
| Ideology: | Democratic socialism Progressivism |
| Position: | Left-wing |
| Colours: | Red |
| Country: | Portugal |
The Politics XXI (Portuguese: Política XXI) was a Portuguese left-wing political party. It was founded by former members of the Portuguese Communist Party and the Portuguese Democratic Movement/Democratic Electoral Commissions.
In 1998, the party decided to merge with other political left parties in order to found the Left Bloc. On 2 April 2008, the party was dissolved due to the good results obtained by the Left Bloc, and became the political association Fórum Manifesto.