| System of government | Unitary semi-presidential republic |
| V-Dem Electoral Democracy Index | 0.68/1 |
| Head of State (President) | Carlos Vila Nova (ADI, centre-right) |
| Head of Government (PM) | Patrice Trovoada ( ADI, centre-right ) |
| Parties in Government | ADI, centre-right |
National Parliament
Principe Regional Parliament
Parties
Movimento de Libertação de São Tomé e Príncipe – Partido Social Democrata (MLSTP-PSD)
Movement for the Liberation of São Tomé and Príncipe – Social Democratic Party
Leader: Jorge Bom Jesus
Orientation: Centre-left
Ideology: Social democracy
Stance towards the government: In government
International affiliation: Socialist International, Progressive Alliance
Acção Democrática Independente (ADI)
Independent Democratic Action
Leader: Patrice Trovoada
Orientation: Centre-right
Ideology: Economic liberalism, Christian democracy
Stance towards the government: Opposition
International affiliation: Centrist Democrat International
Movimento Cidadãos Independentes de São Tomé e Príncipe – Partido Socialista (MCI-PS)
Movement of Independent Citizens of São Tomé and Príncipe – Socialist Party
Leader: Antonio Monteiro
Orientation: Centre-left
Ideology: Democratic socialism
Stance towards the government: Opposition
International affiliation: Socialist International, Progressive alliance
Basta!
Enough!
Leader: Salvador Ramos
Orientation: *
Ideology: *
Stance towards the government: opposition
International affiliation: N/A
União para Mudança e Progresso do Príncipe (UMPP)
The Union for Change and Progress of Principe
Leader: Filipe Nascimento
Orientation: Regionalist
Ideology: Principe Island interest
Stance towards the government: Extraparliamentary opposition
International affiliation: N/A
Note: The UMPP is represented in the Regional Parliament of the Autonomous Region of Príncipe, where it holds an absolute majority.
Movimento Verde para o Desenvolvimento do Príncipe (MVDP)
Green Movement for the Development of Principe
Leader: Nestor Umbelina
Orientation: Green
Ideology: Green politics
Stance towards the government: Extraparliamentary opposition
International affiliation: N/A
Note: The MVDP is represented in the Regional Parliament of the Autonomous Region of Príncipe, where it is the main opposition
Partido de Convergencia Democratica – Grupa de Reflexão (PCD – GR)
Democratic Convergence Party-Reflection
Leader: Danilson Cotu
Orientation: Centre-right
Ideology: Liberalism
Stance towards the government: In government
National affiliation: N/A
International affiliation: N/A
União dos Democratas para Cidadania e Desenvolvimento (UDD)
Union of Democrats for Citizenship and Development
Leader: Carlos Neves
Orientation: Centre
Ideology: Centrism
Stance towards the government: In government
National affiliation: MDFM-UDD alliance
International affiliation: N/A
Movimento Democrático das Forças da Mudança-Partido Liberal (MDFM-PL)
The Force for Change Democratic Movement-Liberal Party
Leader: Tome Vera Cruz
Orientation: Liberal
Ideology: Liberalism
Stance towards the government: In government
National affiliation: MDFM-UDD alliance
International affiliation: N/A
Movimento Social Democrata – Partido Verde de São Tomé e Príncipe (MSD-PVSTP)
Social Democratic Movement – Green Party of São Tomé and Príncipe
Leader: Elsa Garrido
Orientation: Green
Ideology: Ecosocialism, social democracy
Stance towards the government: Extraparliamentary opposition
International affiliation: N/A