Robert Reininger (born 20 January 1958) is a former professional tennis player from Austria.

He followed it up with a national Under 21s title in 1976, then in 1979 was Austria's Indoor and Outdoor Championships in both singles and doubles.

This included a tie against Great Britain in Bristol and a match against Ilie Năstase in Bucharest.

[1][2] His only title on the Grand Prix tennis circuit was in the doubles at the Sofia Open in 1980.

[3] As a singles player his best performances came in his home event, the Grand Prix tournament held in Linz.