Denis Constantin (born 29 July 1980) is a former Mauritian badminton player, and later represented Australia.

[3] He then defend the men's doubles gold in 2002 partnered with Stephan Beeharry.

[4] Constantin competed for Mauritius at the 1998, and 2002 Commonwealth Games, also at the 2000 Summer Olympics.

[5][6] He was awarded Athlete of the Month by the Mauritius Sports Council in June 2001.

[7] Constantin graduated from the La Trobe University in Melbourne, and now work as physiotherapists.