| Marius Kižys | |
| Birth Date: | 21 February 1982 |
| Birth Place: | Kretinga, Lithuania |
| Currentclub: | Vang/Tvorup if |
| Clubnumber: | 13 |
| Position: | Midfielder |
| Years1: | 2001–2003 |
| Years2: | 2004 |
| Years3: | 2004 |
| Years4: | 2005 |
| Years5: | 2005–2006 |
| Years6: | 2007 |
| Years7: | 2007–2010 |
| Years8: | 2010 |
| Years9: | 2011–2012 |
| Years10: | 2017–2018 |
| Years11: | 2018– |
| Clubs1: | FK Žalgiris Vilnius |
| Clubs2: | FBK Kaunas |
| Clubs3: | FK Šilutė |
| Clubs4: | Hearts |
| Clubs5: | FK Šilutė |
| Clubs6: | ŁKS Łódź |
| Clubs7: | Górnik Zabrze |
| Clubs8: | FK Tauras Tauragė |
| Clubs9: | FC Nizhny Novgorod |
| Clubs10: | Sjørring Boldklub |
| Clubs11: | Vang/Tvorup if |
| Caps1: | 32 |
| Caps2: | 1 |
| Caps3: | 11 |
| Caps4: | 7 |
| Caps5: | 31 |
| Caps6: | 11 |
| Caps7: | 34 |
| Caps8: | 8 |
| Caps9: | 1 |
| Caps10: | 3 |
| Caps11: | 8 |
| Goals1: | 3 |
| Goals2: | 0 |
| Goals3: | 6 |
| Goals4: | 0 |
| Goals5: | 3 |
| Goals6: | 3 |
| Goals7: | 0 |
| Goals8: | 3 |
| Goals9: | 0 |
| Goals10: | 3 |
| Goals11: | 11 |
| Pcupdate: | 14:44, 31 May 2012 (UTC) |
Marius Kižys (born 21 February 1982) is a Lithuanian footballer. He is currently playing for Vang Tvorup IF. Previously he has played for FBK Kaunas, FK Šilutė, ŁKS Łódź and Scottish Premier League side Heart of Midlothian.