Michel François Platini (French pronunciation: [miʃɛl fʁɑ̃swa platini]; born 21 June 1955) is a French football administrator and former player and manager. Regarded as one of the greatest footballers of all time, Platini won the Ballon d'Or three times in a row, in 1983, 1984 and 1985, and came seventh in the FIFA Player of the Century vote. In recognition of his achievements, he was named a Knight of the Legion of Honour in 1985 and became an Officer in 1998. As the president of UEFA in 2015 he was banned from involvement in football under FIFA's organisation, over ethics violations. The ban lasted until 2023.

During his career, Platini played for the clubs Nancy, Saint-Étienne, and Juventus. Nicknamed Le Roi (The King) for his ability and leadership, he was a prolific goalscorer; he won the Serie A capocannoniere award three consecutive times between 1983 and 1985, and was the top scorer of Juventus's victorious 1984–85 European Cup campaign. Platini was a key player of the France national team that won the 1984 European Championship, a tournament in which he was the top scorer and best player, and reached the semi-finals of the 1982 and 1986 World Cups. Together with midfielders Alain Giresse, Luis Fernández and Jean Tigana, he formed the carré magique (magic square) of the French team in the 1980s. Platini was his country's record goalscorer until 2007, and held the record for most goals scored (9) in the European Championship until being surpassed by Cristiano Ronaldo in 2021, despite only appearing in the 1984 tournament.

Following his retirement as a player, Platini was the France national team coach from 1988 to 1992, and was the co-organizer of the 1998 World Cup in France. In 2007, he became the first former player to be elected as the president of the Union of European Football Associations (UEFA). He also held the positions of chairman of FIFA's Technical and Development Committee and vice-president of the French Football Federation.

Michel François Platini was born on 21 June 1955 in Jœuf, Meurthe-et-Moselle, the son of Aldo and Anna (née Piccinelli), both of Italian ancestry. Anna's family has its roots in the province of Belluno, while Aldo's father, Francesco Platini, was an immigrant from Agrate Conturbia, in the province of Novara, and settled in France shortly after the end of the First World War. Aldo was a professional footballer and a long-time director for AS Nancy, the club where Michel started his professional career.

After performing poorly in the final of a 1969 young footballers' competition, Michel Platini attracted attention at 16 years of age in a Coupe Gambardella tournament match with an impressive display for Jœuf juniors against a Metz junior side. Platini was called up for a trial with Metz, but missed out on the opportunity due to injury, and was not immediately invited back after the Metz coach moved to another club. He returned to regional league football with Jœuf. Another trial at Metz went horribly wrong when a breathing test on a spirometer caused Platini to faint. The doctor's verdict on Platini's breathing difficulties and weak heart ended any hopes Platini had of playing for his boyhood favorites. He then joined the reserve side of his father's club Nancy in September 1972, and became friends with team goalkeeper Jean-Michel Moutier.

Platini was quick to make a big impression at his new club, scoring a hat-trick in a reserve team match against Wittelsheim. Further outstanding displays put him in contention for a place in the Nancy first team. His introduction to the first-team squad was inauspicious. On the substitutes' bench for a match against Valenciennes, Platini was spat on and hit by various objects thrown from the crowd when a fight broke out in the stands. Playing for the reserves a few days later, a hefty challenge from an opponent left Platini with a bad ankle injury. His season would finish on a more positive note, and he would go on to make his league debut against Nîmes on 3 May 1973.

In March 1974, he suffered a setback when he sustained a double fracture of his left arm in a match at OGC Nice. Platini missed the remainder of the season as a result, unable to assist Nancy in an unsuccessful bid to avoid relegation from Ligue 1. The following season saw Nancy win promotion back to the French first division with ease. Platini became the team's most important player, scoring 17 goals, a number of which were scored from free-kicks, as was becoming Platini's specialty. Saint-Étienne, the then reigning French league champions, were knocked out of the French Cup with two goals from Platini free-kicks. Platini practised his free-kicks with the help of his friend, goalkeeper Moutier, and using a row of dummies to form a defensive wall of sorts.

With Nancy back in Ligue 1, Platini's military service reduced his availability for matches, but he continued to make himself available to play when possible. In a match away to Laval, Platini, angered by the taunts of the home supporters, scored a hat-trick, but sustained another injury. Press reports claimed that Platini's season was over and that he would require a knee operation, but neither claim proved to be correct. Instead, Platini returned to first-team football two weeks later for Nancy's French Cup semi-final against Marseille at the Parc des Princes. Platini headed the only Nancy goal in their 4–1 loss and was forced to leave the field injured. Following his participation in the 1976 Montreal Olympics, Platini signed a two-year contract with Nancy, his first professional contract.