Karl Simon Forsström (born 1 April 1989) is a Swedish professional golfer who currently plays on the European Tour, where he has won once.

He started competing on the Swedish Teen Tour in 2004 and was runner-up at the 2008 Alex Norén Junior Open.

In 2009, he won the Viksjö Junior Open and the Skandia Tour Riks #4 - Stockholm.

[3] In 2016, Forsström made an eagle on the penultimate hole to card a 7-under-par 64 on the final day of the KPMG Trophy, to secure a maiden victory on the Challenge Tour, two strokes ahead of Steven Tiley.

[7] In May, Forsström claimed his first European Tour victory at the Soudal Open in Belgium.