Villiam Vecchi (Scandiano, Reggio Emilia, December 28, 1948-Reggio Emilia, August 3, 2022) was an Italian soccer player and goalkeeper coach.
He played for Milan from 1967 to 1974. He was known as the "hero of Thessaloniki" due to the European Cup Winners' Cup final between Milan and the English team Leeds United, played on May 16, 1973 in Thessaloniki, in the north of Greece. Milan started by winning the final 1-0 thanks to a goal that came after three minutes. From there, the Italian team locked themselves in the back and Vecchi became the main actor, having a memorable performance, resisting the English attack and managing to keep a clean sheet for ninety minutes.
He also played in the 1972-1973 Italian Cup final against Juventus, neutralizing penalties from Pietro Anastasi and [Roberto Bettega]] in the final series of penalties after the final result was a draw.
He left Milan at the end of the 1973-1974 season and moved to Cagliari in 1974-1975. He defended the gate of the island team for a season alternating with Renato Copparoni while the following year (1975-1976) a hand injury caused him a long hiatus.
In 1976-1977 he moved to Como, where he played for five years. Larian's team, also thanks to his efficient contribution, recovered Serie A in the 1979/80 season.
In 1981-1982 he moved to SPAL, where he concluded his competitive career and later became a goalkeeping coach, which made him return to Milan.
Since July 2010, after having coached AC Milan first team goalkeepers for a decade, he has been coaching Allievi Nazionali goalkeepers, in the Rossoneri youth sector. 
In the summer of 2013 he rejoined Carlo Ancelotti's coaching staff, this time at Real Madrid, and from 2016 to 2018 he held the position of supervisor of goalkeeper preparation in the Reggiana youth sector.
He was the coach of Iker Casillas, Dida, Gianluigi Buffon, Diego López and Keylor Navas. He was the goalkeeping coach for Parma, Milan and Real Madrid at the time Carlo Ancelotti was with these teams.
He died on August 3, 2022 at the Santa Maria de Reggio Emilia hospital at the age of 73.