Thomas Oelsner (born 19 June 1970) is a retired German Paralympic Nordic skier who won multiple gold medals throughout his career.

He was the first person to fail a drugs test at the Winter Paralympic Games and was stripped of two gold medals.

[1][2] He entered the 1994 Winter Paralympics in Lillehammer as a LW6 class competitor in the biathlon and cross country skiing.

[4][5] He was suspended prior to the 10 km cross country event and subsequently stripped of the two gold medals.

[3][10] At the 2010 Winter Paralympics in Vancouver Oelsner was embroiled in another controversy when he claimed that the sight on the gun he was using for the Biathlon had been sabotaged, smeared in something he thought might have been chocolate.