Jacob Adaktusson (born 31 August 1980) is a professional tennis player from Sweden.

[1] The greatest achievement of Adaktusson's career is qualifying for the main draw of the 2006 Australian Open.

He played veteran Davide Sanguinetti in the first round and lost in straight sets.

[2] It is as a doubles player that he has competed in his two ATP Tour tournaments, with Joachim Johansson at Stockholm in 2000 and partnering Johan Landsberg at the 2007 Swedish Open.

[2] He made a comeback on the tour in September 2012 after several years out of the game and is as of January 2013 playing on the ITF Men's Circuit.