Vincenzo "Enzo" Jannacci (Italian pronunciation: [vintʃˈɛntso janˈnattʃi]; 3 June 1935 – 29 March 2013) was an Italian singer-songwriter, pianist, actor and comedian. He is regarded as one of the most important artists in the post-war Italian music scene.

Jannacci is widely considered as a master of musical art and cabaret, and in the course of his career has collaborated with many famous Italian musicians, performing artists, journalists, television personalities and comedians. He has written around thirty albums and soundtracks, some of which have since come to be seen as milestones in the history of Italian popular music.

A cardiologist in his day job, he is also regarded as one of the founders of Italian rock and roll music, along with Adriano Celentano, Luigi Tenco and Giorgio Gaber, with whom he collaborated for over forty years.

Enzo Jannacci was born in Milan on 3 June 1935 to a Lombard mother and a father of Apulian descent – his paternal grandfather, also called Vincenzo, had moved to Milan from Bari just before the onset of the First World War.

His father was an aeronautical official and worked at Forlanini Airport (now more commonly known as Linate). During the Second World War he took part in the Italian resistance movement, in particular during the defence of Milanese aviation at Piazza Novelli, an act which later inspired songs such as Sei minuti all'alba ("Six Minutes to Dawn").

After finishing high school at the Liceo Scientifico Leonardo da Vinci, Jannacci graduated in harmony, composition and conducting at the Milan Conservatory. Later in 1967 he graduated with a degree in medicine from the University of Milan. He left Italy for South Africa and the United States to specialise in cardiac surgery, where he joined the team of Christiaan Barnard, the famous surgeon. On 23 November 1967 he married Giuliana Orefice, who gave birth to Paolo, their only child, five years later. Today Paolo is a musician and conductor.

Jannacci started his musical career in 1956, becoming the keyboardist of the group "Rocky Mountains". The lead member of the group initially was Tony Dallara, later replaced by Giorgio Gaber. In 1957 he became the keyboardist of the Rock Boys, a rock'n'roll group accompanying Adriano Celentano. In 1958, while continuing to perform with Rock Boys, he formed with Gaber the musical duo "I due corsari" with whom he made his first recordings. In the same years he was able to accompany as a jazz pianist several great names such as Stan Getz, Gerry Mulligan, Chet Baker, Bud Powell and Franco Cerri, with whom he recorded several albums.

Jannacci started his solo career in the early sixties, recording two songs, "L'ombrello di mio fratello" and "Il cane con i capelli", that already revealed his ironic and surreal style. In 1962 he debuted on stage with the recital Milanon Milanin. The following year he made his debut as stand-up comedian in the Milan comedy club Derby; there he met Dario Fo and the duo Cochi & Renato, with whom he collaborated several times over the years.