Here is a list of South Indian baby boy names starting with Y:
| Yaachan | Prayer |
| Yaaja | One of the names of Lord Shiva. |
| Yaatiesh | Lord of devotees |
| Yadavendra | Leader of the Yadavas |
| Yadhu | Name of an ancient Indian king |
| Yadunandan | A name of Lord Krishna |
| Yadunath | One of many names of Lord Krishna |
| Yagnakaya | One who accepts all the sacred and sacrificial offerings |
| Yagya | A holy ceremony |
| Yagyasen | Name of king Drupad |
