Kalanidhi or Kalanithi may refer to:
- Kalanidhi Indira Sangeet Mahavidyalaya, a Nepal classical music school
- Sangeetha Kalanidhi, an award given by the Madras Music Academy
People with the surname
edit- A. Kalanithi, Indian politician
- Kalanithi Maran, Indian media baron
- Kalanidhi Narayanan, Indian dancer
- Kalanidhi Veeraswamy, Indian politician
- Manju Latha Kalanidhi, Indian journalist
- Paul Kalanithi, Indian-American neurosurgeon