Today the Russian billionaire is celebrating 10 years in charge of Stamford Bridge during which he has overseen 11 trophy triumphs.
"There are probably no words that can put into context what Mr Abramovich has done for this football club," Terry told next week's edition of the club's official magazine. "He has obviously transformed the team but also, behind the scenes, he has done so much, not least the training ground.
"When you speak to him, he talks football. He wants to know how the club can improve and what he can do to improve it. He wants to keep pushing on. He wants to win every trophy, every single year. That is his target every season."
Abramovich will begin his 11th year with the Blues alongside manager Jose Mourinho, who has been installed as the club's boss for a second term.