The 51-year-old penned a three-year deal with the south-coast outfit on Monday and the former Valencia manager succeeds Maurico Pochettino in the St Mary’s hot seat.
I could see clearly that this was the right club for me
Koeman, who earned 78 Dutch caps during his playing career, takes charge of the Saints after quitting Feyenoord at the end of the season following a second-place finish in Eredivisie.
And the former Barcelona midfielder expressed his excitement at taking over the Southampton reins as he attempts to build on the foundations laid by Pochettino.
“Southampton have a talented first-team squad, a world-class academy and the infrastructure to sustain success in the Premier League,” Koeman said.
“From my very first meeting with executive director Les Reed, I could see clearly that this was the right club for me. We share the same philosophy of football and the same belief in how to develop the club.
“The opportunity to continue the development of this famous football club was simply too good to turn down. I cannot wait to get started.”
Meanwhile, Southampton executive director Les Reed couldn’t hide his delight at landing the Dutchman.
“We are extremely pleased to have secured a new manager of Ronald Koeman’s calibre and status within the game,” said Reed.
“From the moment we met with Ronald, it was clear he had the vision and ambition to take our club forward, that he shared our football philosophy and could see the opportunity to move our club to the next level.
“The club, the players and the fans will all be excited to have a man of Ronald’s experience at the very highest level joining our club.”
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news