The position was held by John Kerr MBE from 1991 to 1995, which coincided with the team’s Premier League debut.
He was associated with the side for more than half a century and stepped down as the PLC board director in 2015.
The current chairman, Mike O’Leary, stated, “We knew John had been unwell for a period of time but this is still very sad news.”
Listen: ‘A pillar of Suffolk’: Ex-Ipswich Town chairman David Sheepshanks pays tribute to John Kerr
“He contributed a huge amount to the football club and was held in high regard at Portman Road.
“This will be a tough time for his family and friends, as well as former colleagues, so right now our thoughts are with them.”