The Catalan club sacked their head coach Quique Setien days after their devastating 8-2 Champions League loss to Bayern Munich.
Koeman became a legendary figure at Barcelona during his playing days, making over 250 appearances for the club and scoring 88 goals in all competitions for the club despite playing as a defender.
As a manager, the Dutchman spent his best days in England as Southampton manager, leading the Saints to a seventh and sixth-place finish in the Premier League in his two seasons in charge.
He left for Everton - a move which didn’t pan out so well - but has performed well while in charge of the Netherlands national team.
It’s believed Koeman will leave his post as Netherlands manager to take on the Barcelona role.
Though it’s a dream job he’s talked about before, Barcelona find themselves in total disarray in relative terms.
Barcelona finished runners-up to Real Madrid in La Liga last season. Setien was only appointed in January and managed just 25 games for the team based at the Nou Camp.
According to the BBC, another former Saints manager in Mauricio Pochettino was also contacted for the role despite him being a former Espanyol player.