French defender Raphael Varane (31) has joined Como on a two-year deal with an option to extend the contract, the newly-promoted Serie A club said on Sunday.
The World Cup-winner, who had spent the last three years at Manchester United after a trophy-laden career with Real Madrid, arrives as a free agent.
"Raphael is a special player and his signing is proof of the ambition we have for this club," new Como manager Cesc Fabregas said.
Varane's arrival adds to the growing list of Premier League players joining the Italians ahead of the season, including former Liverpool keeper Pepe Reina and defender Alberto Moreno.