Åsa Nilla Maria Fischer (born 2 August 1984) is a Swedish footballer for Linköpings FC and the Swedish national team. She was previously the captain of LdB FC Malmö.
Fischer won most of her caps for Sweden as a defensive midfielder after her debut versus Norway in January 2001. Approaching a century of appearances, she was converted to a centre back by coach Pia Sundhage in 2013.
The change in position coincided with an upturn in goalscoring form for Fischer, who scored three times for hosts Sweden at UEFA Women's Euro 2013. Her performances in Sweden's run to the semi-finals prompted a contract offer from European Champions VfL Wolfsburg and Fischer agreed to move to Germany from 1 January 2014. In August 2013 the clubs reached a deal for "grateful" Fischer's immediate transfer. Fischer played the first competitive game for her new side in the Bundesliga 2013–14 season opener against Bayern Munich in front of a home crowd of 8,249 fans on 7 September 2013.