Pedro Siza Vieira (born 14 July 1964)[3] is a Portuguese lawyer and politician who served as Deputy Prime Minister since 21 October 2017[update][2] and Minister of Economy since 15 October 2018[update] in the government of Prime Minister António Costa.

[4][1] Siza Vieira was born in Lisbon, where is father Antonio Carlos, a chemical engineer from Matosinhos, in the outskirts of Porto, was working at the time at CUF, a large industrial conglomerate.

Siza's family returned to the north and lived in Matosinhos and Santo Tirso, where he completed his secondary education.

[3] Siza Vieira joined the government in 2017 from the law firm Linklaters.

[5] As minister, Siza Vieira notably launched a 1.3 billion-euro ($1.5 billion) fund in 2021 to strengthen the capital of small and medium-sized companies hard hit by the COVID-19 pandemic in Portugal, mainly in the tourism and retail sectors.