• Leader: Luís Montenegro (Prime Minister)
• Ideology: Liberal conservatism, pro-Europeanism
• Coalition: Social Democratic Party (PSD) + CDS–People's Party (CDS-PP)

The Democratic Alliance (Aliança Democrática, AD) is a center-right coalition primarily composed of the Social Democratic Party (PSD) with 89 seats and the CDS–People's Party (CDS-PP) with 2 seats. Together, they form the current minority government under Prime Minister Luís Montenegro.

The PSD, despite its name, occupies the center-right of Portugal's political spectrum and has been one of Portugal's two dominant parties since 1974, having formed nine governments including four with absolute majorities. The CDS-PP is a smaller Christian democratic party that has historically been the PSD's coalition partner.

The AD coalition governs without a parliamentary majority, requiring case-by-case support from opposition parties to pass legislation. The coalition has imposed a cordon sanitaire against Chega, refusing formal cooperation with the far-right despite its parliamentary strength, which means it must negotiate with the PS or smaller parties to advance its legislative agenda.