| Guido Grünheid | |
| Height Ft: | 6 |
| Height In: | 10 |
| Weight Lb: | 251 |
| Birth Date: | 1982 10, df=y |
| Birth Place: | Jena, East Germany |
| Nationality: | German |
| Draft Year: | 2004 |
| Career Start: | 1997 |
| Career End: | 2016 |
| Career Number: | 12, 13, 25, 31 |
| Career Position: | Power forward / small forward |
| Years1: | 1997–2000 |
| Years2: | 2000–2002 |
| Team2: | TuS Lichterfelde |
| Years3: | 2002–2005 |
| Team3: | Alba Berlin |
| Years4: | 2005–2007 |
| Team4: | RheinEnergie Köln |
| Years5: | 2007–2008 |
| Team5: | Hanzevast Capitals |
| Years6: | 2008 |
| Team6: | Köln 99ers |
| Years7: | 2008–2009 |
| Team7: | Aigaleo Athens |
| Years8: | 2009–2011 |
| Team8: | Mitteldeutscher |
| Years9: | 2011–2015 |
| Team9: | Artland Dragons |
| Years10: | 2015–2016 |
| Team10: | Science City Jena |
| Highlights: |
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Guido Grünheid (born 25 October 1982) is a German former professional basketball player.
During his pro career, Grünheid played with several German League clubs. He also played in the Greek League, with Aigaleo, and in the Dutch League with Hanzevast Capitals.
Grünheid was also a member of the senior German national team. With Germany, he played at the 2006 FIBA World Cup and the 2007 EuroBasket.