Eparki Siro-Malabar Ramanathapuram ana ing wilayah Ramanathapuram, Coimbatore, Tamil Nadu. Eparki kasebut ngeliputi distrik-distrik Coimbatore, Tirupur, Erode lan Karur. Wilayahne diambakake nganti Salem lan Trichy ing 10-10-2017. Eparki Ramanathapuram didegake kanthi misahkene saka eparki Siro-Malabar Palghat. Biskop Ramanathapuram saiki menika Mar Paul Alappat. Greja Tritunggal Suci, Ramanathapuram menika katedral saka eparki kasebut lan kediaman biskop uga ana ing Ramanathapuram. Eparki kasebut menika sufragan saka Eparki Agung Thrissur.
Kabiskopan kasebut didegake dening Mar Varkey Kardinal Vithayathil, liwat dekrit tertanggal 18 Januari 2010. Eparki kasebut duwe amba 18,525 km2 karo total populasi 89, 24,717 sing endi kira-kira 15,694 menika umat Katulik Siro-Malabar.[1][2]