Carlo Tagnin (18 November 1932 – 13 March 2000) was an Italian footballer and manager, who played as a midfielder, most notably for the famous Inter side of the 1960s, which achieved much success, both domestically and internationally.

His sentence was later reduced by a year, and in 1962, he joined Internazionale, where he had his most notable spell, remaining with the club until 1965, after struggling to gain playing time ahead of the younger defensive midfielder Gianfranco Bedin during his final season with the team.

Tagnin ended his career after the 1965–66 season, returning to Alessandria once again, in Serie B.

[1][2][3][4] While at Inter, Tagnin was part of the starting eleven of Helenio Herrera's Grande Inter side which won the UEFA Champions League final in 1964, during which he demonstrated his excellent man-marking abilities against Real Madrid's star player Alfredo Di Stefano.

In a 2004 interview with l'espresso, his former Inter teammate Ferruccio Mazzola suggested that his death was associated with health-damaging performance-enhancing drugs that were allegedly given to the players of the Grande Inter side under manager Helenio Herrera.