Pellegrino Rossi (13 July 1787 – 15 November 1848) was an Italian economist, politician and jurist. He was an important figure of the July Monarchy in France, and the Minister of Justice in the government of the Papal States, under Pope Pius IX.
Rossi was born in Carrara, Tuscany. Educated at the University of Pisa and the University of Bologna, he became professor of law at the latter in 1812. In 1815 he gave his support to Joachim Murat and his Neapolitan anti-Austrian expedition: after the latter's fall, he escaped to France, and then proceeded to Geneva, where he began teaching a course of jurisprudence applied to Roman law, the success of which gained him the unusual honour of naturalization as a citizen of Geneva. In 1820 he was elected as a deputy to the cantonal council, and was a member of the diet of 1832; Rossi was entrusted with the task of drawing up a revised constitution, which was known as the Pacte Rossi. This was rejected by a majority of the diet, a result which deeply affected Rossi, and made him accept the invitation of François Guizot to settle in France.
Here he was appointed in 1833 to the chair of political economy in the Collège de France, vacated by the death of Jean-Baptiste Say. He was naturalized as a French citizen in 1834, and in the same year became professor of constitutional law in the faculty of law of the Paris University. In 1836 he was elected a member of the Academy of Political and Moral Sciences, was raised to the French peerage in 1839, and in 1843 became dean of the faculty of law.
In 1845 he was sent to Rome by Guizot to discuss the question of the Jesuits, being finally appointed ambassador of France for the Papal States. The revolution of 1848 severed his connection with France, and he remained at Rome and became Minister of the Interior under Pius IX. Rossi's program of liberal reforms, however, never took off. He was also very unpopular owing to his otherwise conservative views.
His assassination took place on the stairs at the opening of the Parliament in the "Palazzo della Cancelleria" on 15 November 1848 by a stab wound to the neck. This was one of the causes of the flight from Rome of Pope Pius IX and the beginning of the series of events that led to the proclamation of the Roman Republic.
The city of Carrara erected a statue in honour of Pellegrino Rossi.