Mar Sebastian Valloppilly is the first Syro-Malabar Catholic Bishop of diocese of Tellicherry.
Mar Sebastian Vallopilly was born on 04.08.1911 at Kudakkachira in the then eparchy of Changanacherry (now in Pala).
He served the diocese as assistant parish priest and spiritual father in the Minor Seminary.
Mar Sebastian Valloppilly was elected as the first bishop of Tellicherry on 16.10.1955 and ordained on 08.01.1956 in St. Peter’s Basilica by Cardinal Eugene Tisserant.
During his tenure as Bishop, Tellicherry was bifurcated in 1973 and again in 1986 and the dioceses of Mananthavady and Thamarassery were created respectively.