They had a son named Aaron Alexander age 7.
News of the divorce broke after French paparazzi snapped photos of Mr Abramovich and his 25-year-old mistress Daria Zhukova in Paris this week.
The divorce announcement ended months of speculation about the couple, who were seen strolling through Paris together before dining and then heading to their respective suites at the luxury Fouquet Barrieres Hotel.
Photos detailing their movements were withdrawn from Paris media shortly after and soon after that, confirmation came from Mr Abramovich`s lawyer that the Russian billionaire and his wife divorced in Russia a month ago.
By then Mr Abramovich and Ms Zhukova had long been considered an item after first being seen together at Chelsea`s game against Barcelona last year, with other sightings following.
The model daughter of a Russian playboy billionaire, Ms Zhukova is a former girlfriend of Russian tennis ace Marat Safin and was studying natural medicine in London last year when she met the Chelsea boss.
Once aware of the relationship, Mr Putin is said to have intervened.
"Abramovich and Putin are incredibly close," said Mr Abramovich`s biographer Chris Hutchins, who is working on Mr Putin`s life story.
"Putin regards Roman as something of a favourite son.
"When the rumours about Mr Abramovich`s private life started surfacing last year, Mr Putin told him to get his act cleaned up."
The pair continued to see one another throughout Abramovich`s divorce as well as after.
Abramovich`s first wife claimed that Roman began seeing Irina when they were still together, and that is Roman`s style.