Magnus Tideman (born 9 April 1963) is a former professional tennis player from Sweden. He won one doubles title and achieved a career-high of World No. 43 in 1988. In singles, he reached the quarterfinals of Toulouse in 1982 (defeating Thierry Tulasne en route) and achieved a career-high ranking of World No. 76 in 1983. Tideman also defeated Manuel Orantes at the 1983 French Open.
After retiring from tennis, he became a tennis coach. He was the coach of Aryna Sabalenka, Thomas Johansson, Jeremy Chardy and Radu Albot. He is currently coaching at the Piatti Tennis Center.