Velankanni may refer to:

• Velankanni, a pilgrim town near Nagapattinam in the Indian state of Tamil Nadu
  • Our Lady of Good Health, or Velankanni Matha an apparition of Mary, mother of Jesus in Velankanni
    • Basilica of Our Lady of Good Health, a Roman Catholic shrine and church in the town of Velankanni
    • Annai Velankanni, 1971 Indian film about the apparition
  • Velankanni railway station, a train station in Velankanni, India
• Graha Maria Annai Velangkanni, a Roman Catholic church in Indo Mughal style dedicated to the apparition of Mary in Velankanni; in Medan, Indonesia
• Our Lady of Good Health Church, Mathigiri, a Roman Catholic church dedicated to the apparition of Mary in Velankanni; in Tamil Nadu, India
• Our Lady of Good Health Church, Pattumala, a Roman Catholic church dedicated to the apparition of Mary in Velankanni; in Kerala, India
• Velankanni Matriculation And Higher Secondary School, a school in Ashok Nagar, Chennai, Tamil Nadu, India

• Annai (disambiguation)