| Melek Sina Baydur | |
| Ambassador From: | Turkey |
| Country: | Bosnia and Herzegovina |
| Term Start: | 3 January 2003 |
| Term End: | 16 December 2005 |
| President: | Ahmet Necdet Sezer |
| Ambassador From2: | Turkey |
| Country2: | Slovenia |
| Term Start2: | 1 January 2006 |
| Term End2: | 29 February 2008 |
| President2: | Ahmet Necdet Sezer Abdullah Gül |
| Birth Place: | Karadeniz Ereğli, Turkey |
| Nationality: | Turkish |
| Education: | Economics |
| Profession: | Diplomat |
| Mawards: | is not set --> |
Melek Sina Baydur (born 1948) is a Turkish retired diplomat and former ambassador of Turkey.
Melek Sina Baydur served as Ambassador of Turkey to Bosnia and Herzegovina in Sarajevo between 03 January 2003 and 16 December 2005. Her next appointment as an ambassador was to Slovenia on 1 January 2006. She served in Ljubljana until 29 February 2008.
Currently, she is retired.