Leader of the Opposition (Portugal)

Leader of the Opposition
Líder da Oposição
Logo of the biggest party in opposition
Incumbent Pedro Nuno Santos since 2 April 2024
Term length	No fixed term While leader of the largest political party not in government
Inaugural holder	Francisco de Sá Carneiro (of the Third Republic)
Formation	23 July 1976 (informally)

The Leader of the Opposition (Portuguese: Líder da Oposição) is an unofficial, mostly conventional and honorary title traditionally held by the leader of the largest party in the Assembly of the Republic – the Portuguese parliament – not within the government; historically, since the Carnation Revolution of 1974, these have almost always been the Socialist and the Social Democratic parties.

Currently, the Social Democratic Party and the CDS – People's Party hold a minority coalition government. The Opposition consists of the Socialist Party, Enough!, Liberal Initiative, the Left Bloc, the Portuguese Communist Party, LIVRE, and the People–Animals–Nature.

The current Leader of the Opposition is Pedro Nuno Santos, since 2 April 2024, when Luís Montenegro took office as Prime Minister in the aftermath of the that year's snap legislative election the previous 10 March.