George Cohen was a World Cup winner for England.
The right-back played in the side that won the World Cup at Wembley in 1966 and was vice-captain.
He won 37 caps for England.
The club said it was deeply sad to learn of the death of one of its greatest ever players.
Our thoughts are with George's friends and family, as well as his beloved wife of more than 60 years, Daphne.
Cohen played in every game of the World Cup.
He was one of five players from the 1966 side who were posthumously honoured after a media campaign.
Cohen played for the club for 13 years.
The 50th anniversary of the World Cup win was marked by the installation of a statue of Cohen at the Cottage. There is a section of the facility named after him.
His World Cup medal is on display at the stadium, with the club having bought it for £80,000 in 1998.
Cohen was described as the best full back I ever played against by George Best.
He had a playing career that ended before his 30th birthday due to a knee injury and after that he was a coach and a manager.
Cohen was given the freedom of the two teams in 2016 for his achievements in football and his campaign for more research into cancer and dementia.
He was vocal in his demands for a public enquiry into dementia in football after a study revealed that ex-players were more than three times as likely to suffer from the condition as the general population.
The Rugby World Cup was won by Ben Cohen.
On social media, there have been many tributes.
Gary Lineker was sorry to hear about George Cohen's death. The '66 World Cup winning team lost another hero. He's going to have football immortality. It is with deep sadness that I inform you that George has passed away.
The chair of the Football Association was sad to hear of George Cohen's passing.
We would like to send our deepest sympathies to George's family and friends.
It was sad to hear of George Cohen's death. Everyone said that George was very nice. My thoughts are with George and his family.