The former Manchester City boss will remain with the Saints having helped guide them to Premier League safety in 2017-18
Southampton have handed Mark Hughes a three-year contract after the Welshman secured their Premier League survival, the club have confirmed.
Hughes was appointed in March as the replacement for Mauricio Pellegrino, with the Saints in danger of dropping to the Championship.
Wins over Bournemouth and relegation rivals Swansea City either side of a draw with Everton proved enough to keep Southampton up despite a final-day defeat to Manchester City - Hughes' side finishing in 17th, three points above the drop zone.