Peter Turnerelli (c.1772–1839) was a successful Irish-born sculptor of Italian descent working in Britain in the early 19th century.
He was born in Belfast, the son of Iacomo (James) Turnerelli, a sculptor, whose own father had left Italy as a refugee, despite being landed gentry in the Lake Como region. His grandfather's surname had been Tognarelli, but this was quickly adapted to the Irish vernacular. The family moved to Dublin in 1787, often thereafter identifying him as "from Dublin".
Peter initially studied for the priesthood, at Saul's Court under Father Thomas Betagh, but following the death of his mother in 1792 the family moved again, to London the following year. Peter abandoned his studies in 1794 and joined them there. He then began studies in October of that year at the Royal Academy to specifically train as a sculptor. In 1796/7 he took a study trip to Rome, a normal practice at this time, and is thought to have specifically studied Antonio Canova as his work shows much infleuence from Canova's style. He continued his studies on returning to London, also receiving tutorship from Peter Francis Chenu, and received his first commissions that year when Lord Heathfield asked him to sculpt busts of Sir Francis Drake and General Eliott. By 1799 he was accomplished and won the silver medal for sculpture in the class.
It is noteworthy that Turnerelli was one of the first to portray his subjects in their natural attire, rather than in classical costume, as was the convention of the age.
In 1797 (before the official end of his own studies), he had been given the enormously prestiguous role as art tutor to the royal princesses, apparently at the request of Sir Thomas Lawrence and Benjamin West. In 1801 this role was elevated when he became Sculptor in Ordinary to the Royal family. However, he twice refused a knighthood.
He died intestate on 20 March 1839 at his house in Newman Street, and is buried in the graveyard of St John's Chapel, St John's Wood, London.