Umberto Eco OMRI (5 January 1932 – 19 February 2016) was an Italian medievalist, philosopher, semiotician, novelist, cultural critic, and political and social commentator. In English, he is best known for his popular 1980 novel The Name of the Rose, a historical mystery combining semiotics in fiction with biblical analysis, medieval studies and literary theory, as well as Foucault's Pendulum, his 1988 novel which touches on similar themes.

Eco wrote prolifically throughout his life, with his output including children's books, translations from French and English, in addition to a twice-monthly newspaper column "La Bustina di Minerva" (Minerva's Matchbook) in the magazine L'Espresso beginning in 1985, with his last column (a critical appraisal of the Romantic paintings of Francesco Hayez) appearing 27 January 2016. At the time of his death, he was an Emeritus professor at the University of Bologna, where he taught for much of his life. In the 21st century, he has continued to gain recognition for his 1995 essay "Ur-Fascism", where Eco lists fourteen general properties he believes comprise fascist ideologies.

Eco was born on 5 January 1932 in the city of Alessandria, in Piedmont in northern Italy. The spread of Italian fascism throughout the region influenced his childhood. At the age of ten, he received the First Provincial Award of Ludi Juveniles after responding positively to the young Italian fascist writing prompt of "Should we die for the glory of Mussolini and the immortal destiny of Italy?" His father, Giulio, one of thirteen children, was an accountant before the government called him to serve in three wars. During World War II, Umberto and his mother, Giovanna (Bisio), moved to a small village in the Piedmontese mountainside. His village was liberated in 1945, and he was exposed to American comic books, the European Resistance, and the Holocaust. Eco received a Salesian education and made references to the order and its founder in his works and interviews.

Towards the end of his life, Eco came to believe that his family name was an acronym of ex caelis oblatus (from Latin: a gift from the heavens). As was the custom at the time, the name had been given to his grandfather (a foundling) by an official in city hall. In a 2011 interview, Eco explained that a friend happened to come across the acronym on a list of Jesuit acronyms in the Vatican Library, informing him of the likely origin of the name.

Umberto's father urged him to become a lawyer, but he entered the University of Turin (UNITO), writing his thesis on the aesthetics of medieval philosopher and theologian Thomas Aquinas under the supervision of Luigi Pareyson, for which he earned his Laurea degree in philosophy in 1954.

After graduating, Eco worked for the state broadcasting station Radiotelevisione Italiana (RAI) in Milan, producing a variety of cultural programming. Following the publication of his first book in 1956, he became an assistant lecturer at his alma mater. In 1958, Eco left RAI and the University of Turin to complete 18 months of compulsory military service in the Italian Army.

In 1959, following his return to university teaching, Eco was approached by Valentino Bompiani to edit a series on "Idee nuove" (New Ideas) for his eponymous publishing house in Milan. According to the publisher, he became aware of Eco through his short pamphlet of cartoons and verse Filosofi in libertà (Philosophers in Freedom, or Liberated Philosophers), which had originally been published in a limited print run of 550 under the James Joyce-inspired pseudonym Daedalus.

That same year, Eco published his second book, Sviluppo dell'estetica medievale (The Development of Medieval Aesthetics), a scholarly monograph building on his work on Aquinas. Earning his libera docenza in aesthetics in 1961, Eco was promoted to the position of lecturer in the same subject in 1963, before leaving the University of Turin to take a position as lecturer in Architecture at the University of Milan in 1964.