Dahlkvist made her Sweden women's national football team debut in 2008 and has accrued more than 130 caps. She represented her country at the 2011 and 2015 FIFA Women's World Cups, the 2012 and 2016 Olympics, as well as the 2009, 2013 and 2017 editions of the UEFA Women's Championship. Her father, Sven "Dala" Dahlkvist, played for AIK and won 39 caps for the Sweden men's team between 1979 and 1985.