Śatarudra-saṃhitā, the third saṃhitā of the Śiva Purāṇa, is a medieval Puranic composition celebrating Rudra–Śiva. Compiled over centuries within evolving Shaiva circles, it weaves legend, hymn and ritual: narratives of Śiva’s manifold manifestations, lists and stories of the “hundred Rudras,” devotional stotras (including Rudra-name liturgies), rites, pilgrimage lore (Kāśī, Kailāsa) and guidance on dharma, tapas and mokṣa. Key themes are the unity behind divine multiplicity, the potency of names and mantras, and devotion balanced with ascetic practice. Today it remains vital to Shaiva worship and temple tradition, and is prized by historians and spiritual seekers for its theology, liturgy and living cultural resonance.