Elsa Amanda Nildén (Swedish: [nɪlden]; born 7 August 1998) is a Swedish professional footballer who plays as a defender for Women's Super League club Tottenham Hotspur and the Sweden national team.

A versatile left-sided defender or midfielder, she previously played in Sweden for IF Brommapojkarna, AIK and Eskilstuna United.

Nildén missed the entire 2015 season with an anterior cruciate ligament injury.

She signed for AIK in February 2017, emulating her father David and grandfather Jim who both played for the Stockholm club.

[3] On 18 August, she made her debut in a 12–0 win against North Macedonian side Kamenica Sasa in the semi-finals of the first round of the UEFA Women's Champions League.