Simon Dyson (born 21 December 1977) is an English professional golfer.

Dyson was born in York. In 1999, he was runner-up in the English Amateur and won the Finnish Amateur title. He was also a member of the Great Britain & Ireland Walker Cup team that year, before turning professional in September.

In 2000, Dyson topped the Asian Tour Order of Merit after winning three tournaments on that tour, and was also Rookie of the Year. He also played a small number of events on the European Tour in 2000. Since 2001 he has played mainly on the European Tour, and has finished in the top 100 on the Order of Merit six times. In March 2006 he won his maiden European Tour title at the Enjoy Jakarta Indonesia Open and he followed up later that year by winning the KLM Open in a play-off. These victories helped him to finish a career-high 21st place on the Order of Merit and into the top 100 of the Official World Golf Rankings. He won the KLM Open for a second time in 2009.