Ritchie Humphreys has left the club after deciding against accepting the offer of a coaching role in Gary Caldwell’s backroom team.
Humphreys, who was a player/coach last season, scored three goals 81 appearances for the Spireites after signing in the summer of 2013.
In a playing career which started at Sheffield Wednesday in 1995, the 39-year-old has made over 700 senior appearances. Humphreys' standing in the game led to him being elected chairman of the Professional Footballers Association in 2013, a position he still holds.
Director & company secretary Ashley Carson paid tribute to Humphreys, saying: “Ritchie has been a model professional throughout his career and it has been a pleasure to have him at our club.
"He played a key role in our League Two title success three years ago and has made a valuable contribution over the last four years. He will always be welcome at the club and we wish him every success for the future.”
John Croot, chief executive of the Chesterfield FC Community Trust, added: “Ritchie has been a great supporter of the Trust during his time at the club, helping to ensure that player visits to various schools, hospitals and community groups have taken place successfully.
"He has actively promoted different initiatives supported by the Trust and his help and support has been invaluable. We thank him for his efforts and wish him all the very best in his future career.”
Humphreys said: “I’d like to thank the management, staff, players and supporters for the past four years.
“My best wishes go to everyone at the football club for the future and I wish Gary, the staff, players and supporters good luck for the coming season and beyond.”