Our Lady of Good Health, also known as Our Lady of Vailankanni, is a title given to the Blessed Virgin Mary by devotees. She is said to have appeared twice in the town of Velankanni, Tamil Nadu, India, in the 16th to 17th centuries.

Velankanni (Vēḷāṅkaṇṇi), is a Special Grade Panchayat Town in Nagapattinam district in the Indian state of Tamil Nadu. It lies on the Coromandel Coast of the Bay of Bengal, 350 km south of Chennai (Madras), 12 km south of Nagapattinam, and 33 km southeast of Thiruvarur.