Karl Ossian Militz Suneson (born 30 June 1975 in Bankeryd, Jönköping) is a retired Swedish sailor, who specialized in the Laser class.

[4] Suneson made his official debut at the 2000 Summer Olympics in Sydney, where he placed fourteenth in the Laser class with a grade of 107, falling short from the top ten spot by a thirteen-point deficit.

[5] Two years later, Suneson reached the summit of his sailing career upon taking home the gold medal at the European Championships in Vallensbæk, Denmark.

[2][6] Two months after celebrating his first victory, Suneson sailed a marvelous stretch to add a silver in his collection at the ISAF World Championships in Cape Cod, Massachusetts, United States with a net score of 40, finishing behind Brazil's Robert Scheidt by fifteen points.

[7][8] At the 2004 Summer Olympics in Athens, Suneson qualified for his second Swedish team in the Laser class by placing eleventh and obtaining a berth from the 2003 ISAF World Championships in Cádiz, Spain.