Purana is a vast genre of Indian literature about a wide range of topics, particularly about legends and other traditional lore. The Puranas are known for the intricate layers of symbolism depicted within their stories. Composed originally in Sanskrit and in other Indian languages, several of these texts are named after major Hindu deities such as Vishnu, Shiva, Brahma and Shakti. The Puranic genre of literature is found in both Hinduism and Jainism.

The Puranic literature is encyclopedic, and it includes diverse topics such as cosmogony, cosmology, genealogies of gods, goddesses, kings, heroes, sages, and demigods, folk tales, pilgrimages, temples, medicine, astronomy, grammar, mineralogy, humor, love stories, as well as theology and philosophy. The content is highly inconsistent across the Puranas, and each Purana has survived in numerous manuscripts which are themselves inconsistent. The Hindu Maha Puranas are traditionally attributed to "Vyasa", but many scholars considered them likely the work of many authors over the centuries; in contrast, most Jaina Puranas can be dated and their authors assigned.

There are 18 Mukhya Puranas (Major Puranas) and 18 Upa Puranas (Minor Puranas), with over 400,000 verses. The first versions of various Puranas were likely to have been composed between 3rd and 10th century CE. The Puranas do not enjoy the authority of a scripture in Hinduism, but are considered as Smritis.