Geraint Jones will leave Kent at the end of the season once his current contract expires.
The wicketkeeper-batsman, who played in England's historic Ashes victory in 2005, has lost his place this season to Sam Billings and spent part of this summer on loan with Gloucestershire.
Kent club president and chairman of cricket Graham Johnson said: "Decisions such as these are never easy and Geraint has been dignified in his approach to his contract position and extremely supportive of the squad during the 2014 season.
"Geraint can be rightly proud of the huge contribution to Kent cricket that he has made over his career. He has followed in a great line of Kent wicketkeeper-batsmen and will take his place in that dynasty."
The 38-year-old played 34 Tests and and 49 one-day internationals for England although he was one of the casualties of the 2006-07 Ashes whitewash, when he was dropped after the third Test in Perth.
He made his first-class debut in 2001 and was part of the side that lifted the Pro40 title that season as well as the T20 crown six years later.
"I would like to thank the members and supporters for the backing they have given me over my time at Kent," he said. "I will look back with a tremendous amount of pride on all that I have achieved with the county."