Giuseppe Tomasi, 11th Prince of Lampedusa, 12th Duke of Palma, GE (23 December 1896 – 23 July 1957), known as Giuseppe Tomasi di Lampedusa, was an Italian writer, nobleman, and Prince of Lampedusa. He is most famous for his only novel, Il Gattopardo (first published posthumously in 1958), which is set in his native Sicily during the Risorgimento. A taciturn, solitary, shy, and somewhat misanthropic aristocrat, he opened up only with a few close friends, and spent a great deal of his time reading and meditating. He said of himself as a child, "I was a boy who liked solitude, who preferred the company of things to that of people", and in 1954 wrote, "Of my sixteen hours of daily wakefulness, at least ten are spent in solitude."

Tomasi was born in Palermo to Giulio Maria Tomasi, Prince of Lampedusa and Duke of Palma di Montechiaro, and Beatrice Mastrogiovanni Tasca Filangieri di Cutò. He became an only child after the death (from diphtheria) of his sister. He was very close to his mother, a strong personality who influenced him a great deal, especially because his father was rather cold and detached. As a child he studied in their grand house in Palermo with a tutor (including the subjects of literature and English), with his mother (who taught him French), and with a grandmother who read him the novels of Emilio Salgari. In the little theater of the house in Santa Margherita di Belice, where he spent long vacations, he first saw a performance of Shakespeare's Hamlet.