Magnus Martinelle (born 8 February 1973) is a former tennis player from Sweden.
Martinelle was once Sweden's No. 1 junior player, and he was the runner-up at the 1991 Salk Open after losing the final to Alex RÃÂdulescu in two sets.
Partnering with countryman Thomas Enqvist, Martinelle won the boys' doubles event at the 1991 French Open.
In the ATP Tour, Martinelle did not enter any main draw. He lost in the singles qualifying rounds at the 1991 Stockholm Open.