Troiano Acquaviva of Aragon (14 January 1696 – 20 March 1747) was an Italian cardinal and Catholic archbishop. Acquaviva was from a noble family with close ties to the Spanish crown; he was the nephew of Cardinal Francesco Acquaviva d'Aragona. Created cardinal in 1732, the following year he became cardinal-protector of Santa Cecilia in Trastevere, for which he provided a new façade. In 1734 King Philip V of Spain appointed him Spanish ambassador to the Holy See.