is a Swedish professional footballer who plays as a left-back for Pro League club Anderlecht and the Sweden national team.

A product of Brommapojkarna's academy, he played two senior seasons with the club before leaving for IFK Göteborg in 2013. With an injury-filled first year, his breakthrough had to wait until the 2014 season, in which he was named the best left back of the campaign. A move to Copenhagen followed in January 2015 for an estimated record fee of €1.4 million. He has ended up being club champion twice, with Copenhagen in the 2015–16 season and 2016–17 season, and runner-up three times with his teams; in Superettan 2012, Allsvenskan 2014 and in the 2014–15 Danish Superliga. He won one domestic cup title with IFK Göteborg 2012–13 and three consecutive domestic cup titles with Copenhagen in 2014–15, 2015–16 and 2016–17. He joined Bundesliga side Werder Bremen in summer 2017, spending four seasons with the German club before moving to La Liga club Sevilla.

Augustinsson was part of the Sweden under-21 squad that qualified and later won the European U21 Championship in 2015, playing all five games in the main tournament and scoring in the penalty shoot-out against Portugal in the final. He made his first appearance for the senior national team in January 2015, and was part of Sweden's Euro 2016, 2018 FIFA World Cup, and Euro 2020 squads.