Maasilamani may refer to:
Shiva, a major Hindu deity, known as Maasilamani or Masilamaninathar in Tamil, the pure (masila) gem (mani) Masilamaninathar Temple, several temples dedicated to the deity in Tamil Nadu, India Masilamaninathar Temple, Tharangambadi Masilamaniswara Temple, Thirumullaivoyal Masilamaniswara Temple, Thiruvaduthurai Maasilamani, a 2009 Indian Tamil-language action comedy film A. B. Masilamani (1914–1990), an Indian pastor Masilamani Azariah, a Church of South India bishop