Thayumanavar or Tayumanavar (Tamil: தாயுமானவர் Tāyumānavar) (1705–1744) was a Tamil spiritual philosopher from Tamil Nadu, India. Thayumanavar articulated the Saiva Siddhanta philosophy. He wrote several Tamil hymns of which 1454 are available. His first four songs were sung 250 years ago at the Congress of Religions in Tiruchirappalli. His poems follow his own mystical experience, but they also outline the philosophy of Hinduism, and the Tirumandiram by Saint Tirumular in its highest form, one that is at once devotional and nondual, one that sees God as both immanent and transcendent.