| Medal record | ||
|---|---|---|
| Natural track luge | ||
Representing  Italy | ||
| World Championships | ||
 | 1998 Rautavaara | Men's singles |
| European Championships | ||
| 1997 Moos in Passeier | Men's singles |
Reinhard Gruber (born 23 June 1977) was an Italian luger who has competed since the late 1990s. A natural track luger, he won the men's singles gold medal at the 1998 FIL World Luge Natural Track Championships in Rautavaara, Finland.
Gruber won a gold medal in the same event at the 1997 FIL European Luge Natural Track Championships in Moos in Passeier, Italy.