Nathalie Björn (born 4 May 1997) is a Swedish professional footballer who plays as a defender for Women's Super League club Chelsea and the Sweden national team.

[2] Björn started at Vaksala SK, a sports club in Uppsala, for which she played in the Swedish Cup at age 14.

Björn then moved to second-placed AIK and played for them in the first division the following season, where they narrowly avoided relegation as third-to-last.

In the 2018/19 Champions League, she played the full distance in four games, but was eliminated in the round of 16 after a 3-2 home defeat and a goalless away draw against Slavia Prague.

[citation needed] In 2021, after eight games in the Damallsvenskan season, Björn moved to Everton where she received a three-year contract.

[8] Along with her Swedish teammate Hanna Bennison, Björn progressed the furthest in the 2023 World Cup of any Everton player.

[9] After coming back from injury earlier in November, her successful penalty kick against Aston Villa gave Everton a 2-1 win in one of her last games with the club.

[12] She made her debut for the club on January 14 in the 3-1 FA Cup victory against West Ham, coming on as a substitute for Jess Carter in the 59th minute.

[13] She made her first start for the team the following week, playing a full 90 minutes and assisting a goal in the 3-1 win over Manchester United.

[18]  Three days later she played in her second senior international match in a goalless draw against Norway, but was only substituted on four minutes before the end of the game.

In the semi-finals they lost to European champions Netherlands after extra time, but then won the game for third place against England, in which she was back in the starting line-up and substituted after 72 minutes.