Mikael Nilsson is a Swedish utility player who was born in Ovesholm, Sweden on 24th June 1978. Nilsson usually plays as a right full back or midfielder. He began his career with local side Ovesholms IF, before moving to Ahus Horna in 1999, where he scored an impressive 11 from 22 games. Nilsson then earned himself a move to Halmstad where he began to capture attention. He won a Championship medal in 2000, and two years later was rewarded with a debut international cap for Sweden in a 3-3 draw with Czech Republic on 20th November 2002. Nilsson scored twice in that contest, and was a regular fixture for the Blue-Yellow for the next seven years. In 2004 he was part of Sweden's European Championship squad, playing in a number of different positions up until the quarter final exit to Holland.
In the summer of 2004 Nilsson signed for Southampton, linking up with his former Halmstad teammate Michael Svensson. He made his debut on 14th August 2004 in a 2-0 defeat to Aston Villa. Nilsson was in and out of the side during 2004/05 as Saints struggled at the wrong end of the table. In truth his performances were never more than average. He left the club in the summer of 2005, following Southampton's relegation to the Championship.
In July 2005 Nilsson signed for Panathinaikos. He represented the club in the Champions League against the likes of Barcelona and Udinese. Nilsson played in Greece for four years, but failed to pick up a single trophy as Panathinaikos played second fiddle to rivals Olympiacos. He was also part of Sweden's 2006 World Cup squad in Germany, but didn't play a single game. Nilsson started all three of Sweden's group matches in Euro 2008 at left back.
On 1st July 2009 Nilsson joined Danish outfit Brondby in a three year deal.