The Scot, who left Ewood Park in September 2012 at the end of a controversial 21-month reign, has been confirmed as the S.League club's manager for the 2014 season
Kean, who has been unemployed since leaving Ewood Park in September 2012 at the end of a controversial 21-month reign, has been appointed DPMM manager for the 2014 season.
The Scot was installed as caretaker manager of Blackburn following Sam Allardyce's sacking in December 2010 and appointed permanently a month later, in spite of vocal opposition from fans.
Under the unpopular ownership of Indian poultry company Venky's, Kean saw Rovers relegated the following season, and departed with the club sitting third in the Championship.
During his period of unemployment, Kean insisted he would consider managerial vacancies beyond the UK in an interview with Sky Sports in July.
"I'm open-minded enough to consider all areas of the world whether it's Asia, the UK or Europe," he insisted.
"I have been in Europe and the UK but I've never coached or managed in Asia, although it's something I would certainly consider. I have no preference really. I'm just to open any good offers."
Kean will replace Croatian Vejran Simunic, who annouced his departure from the 2013 S.League League Cup runners-up earlier this month.
Simunic led DPMM to a second-place finish in the 2012 S.League season and won the League Cup, but has failed to replicate that success this season, with the club set to finish in the bottom half.
Kean's chairman at DPMM will be His Royal Highness Prince Al-Muhtadee Billah, Crown Prince of Brunei.