| Medal record | ||
|---|---|---|
| Men's swimming | ||
| Representing |
||
| World Championships (LC) | ||
| 2005 Montreal | 50 m backstroke | |
| European Championships (LC) | ||
| 2008 Eindhoven | 50 m backstroke | |
| 2012 Debrecen | 100 m backstroke | |
| 2006 Budapest | 50 m backstroke | |
| 2008 Eindhoven | 100 m backstroke | |
| 2006 Budapest | 100 m backstroke | |
| Mediterranean Games | ||
| 2005 Almería | 50 m backstroke | |
| 2005 Almería | 100 m backstroke | |
| 2009 Pescara | 100 m backstroke | |
| 2009 Pescara | 4x100 m medley | |
| 2005 Almería | 4×100 m freestyle | |
| 2009 Pescara | 4x100 m freestyle | |
Aristeidis ("Aris") Grigoriadis (Greek: Άρης Γρηγοριάδης) (born 6 December 1985) is a Greek swimmer from Thessaloniki.
Grigoriadis was the first Greek swimmer to be crowned world champion in the 50 m backstroke event of the 2005 World Championships in Montreal. At the European Championships of Eindhoven in 2008, he won two medals: the gold in 50 m backstroke and the silver in 100 m backstroke.
He participated at the 2012 Olympic Games in the 100 m backstroke event, in which he reached the semifinals, taking the 14th place.