| Hreiðar Guðmundsson | |
| Nationality: | Icelandic |
| Fullname: | Hreiðar Levý Guðmundsson |
| Birth Date: | 29 November 1980 |
| Birth Place: | Reykjavík, Iceland |
| Position: | Goalkeeper |
| Years1: | -2007 |
| Clubs1: | KA Akureyri |
| Years2: | 2007-2009 |
| Clubs2: | IK Sävehof |
| Years3: | 2009-2011 |
| Clubs3: | TV Emsdetten |
| Years4: | 2011-2014 |
| Clubs4: | Nøtterøy IF |
| Years5: | 2014-2016 |
| Clubs5: | KA Akureyri |
| Years6: | 2016-2017 |
| Clubs6: | Halden Topphåndball |
| Years7: | 2017- |
| Clubs7: | Íþróttafélagið Grótta |
| Nationalteam1: | Iceland |
| Nationalcaps1: | 142 |
| Nationalgoals1: | 2 |
Hreiðar Levy Guðmundsson (born 29 November 1980) is an Icelandic handball player who currently plays for Íþróttafélagið Grótta in Iceland. He has previously played in both Swedish, Norwegian and German handball. He was part of the Icelandic team that won the silver medal at the 2008 Summer Olympics.