| Murat Alaçayır | |
| Height: | 1.75 m |
| Birth Date: | 1 August 1973 |
| Birth Place: | Ankara, Turkey |
| Position: | midfielder |
| Youthclubs1: | Bursaspor |
| Youthclubs2: | Kocaelispor |
| Years1: | 1993–1994 |
| Clubs1: | Mustafakemalpaşa Spor |
| Years2: | 1994–1996 |
| Clubs2: | Bandırmaspor |
| Years3: | 1996–1997 |
| Clubs3: | Kartalspor |
| Years4: | 1997–1999 |
| Clubs4: | Altay |
| Years5: | 1999–2001 |
| Clubs5: | Beşiktaş |
| Years6: | 2001–2003 |
| Clubs6: | Diyarbakırspor |
| Years7: | 2002–2003 |
| Clubs7: | → Sakaryaspor (loan) |
| Years8: | 2003–2005 |
| Clubs8: | Altay |
| Years9: | 2005–2007 |
| Clubs9: | İzmirspor |
| Manageryears1: | 2010 |
| Managerclubs1: | Bucaspor (youth) |
| Manageryears2: | 2011–2013 |
| Managerclubs2: | Altay (youth) |
| Manageryears3: | 2014–2015 |
| Managerclubs3: | Bergama Belediyespor |
| Manageryears4: | 2015 |
| Managerclubs4: | Serhat Ardahan Spor |
| Manageryears5: | 2015–2016 |
| Managerclubs5: | Sandiklispor (assistant) |
| Manageryears6: | 2016–2017 |
| Managerclubs6: | Sandiklispor |
Murat Alaçayır (born 1 August 1973) is a retired Turkish football midfielder and later manager.