Lars Edvin "Lasse" Lagerbäck (pronounced [ˈlɑːʂ ˈlâsːɛ ˈlɑ̂ːɡɛ(r)ˌbɛk]; born 16 July 1948) is a Swedish football manager and former player.

After a short stint as manager of Nigeria, he led Iceland to unprecedented success as they qualified for their first finals competition, UEFA Euro 2016, and reached the quarter-finals, beating England in the last 16.

Born in Katrineholm and raised in Ovansjö, Medelpad, in his youth, Lagerbäck played for Alby FF.

In 1974, he attended the Swedish School of Sport and Health Sciences, where he was a classmate of current assistant coach Roland Andersson.

[5] Under their guidance, the Sweden national team qualified for UEFA Euro 2000 but was eliminated in the group stages.

[8] On 4 October 2011, KSÍ's chief executive Geir Þorsteinsson reported that talks had begun over the appointment of Lagerbäck as the new manager of the Icelandic national team.

[9] Under Lagerbäck, Iceland qualified for the play-off stage of the qualification tournament for the 2014 FIFA World Cup, but Croatia were the victors over two legs.

[10] Shortly thereafter Lagerbäck signed a new contract, this time as joint manager with his former Iceland assistant Heimir Hallgrímsson, who took over as sole manager with Lagerbäck's retirement following UEFA Euro 2016, where Iceland famously reached the quarter-finals, beating England in the last 16.

[13] On 26 March, Lagerbäck took charge of his first game as manager of Norway, which resulted in a 2–0 defeat to Northern Ireland in Belfast.

In December 2020, Lagerbäck was fired from his role as national team manager, being replaced by Ståle Solbakken.