Devardhi or Vachanacharya Devardhigani Kshamashramana or Devavachaka was a Jain ascetic of the Śvetāmbara sect and an author of several Prakrit texts.

According to a legend, Mahavira had told Saudharmendra (demi-god in Jainism) in a holy assembly in Rajgruhi city,"Harinaigmeshin transferred me during my state of embryo from the womb of Devananda to the womb of Trishala and after 1000 years of my nirvana (emencipation), he would live again by the name of Devardhigani and he would be the final authority on the Drishtivaad (the title of twelfth anga).

His most notable contributions revolve around the preservation and compilation of Jain scriptures, especially at the second council of Vallabhi held in 453 AD.

At the beginning of the Vallabhi Council, Devardhigani sat with shramans (Jain monks) and listened to the canonical texts and memorized them all and scripted them systematically and in an organized fashion.

[13] One of the texts that mention him is the Pattavali, in the second section of the Kalpa Sūtra, which is both an account and a praise of all the early Śvetāmbara Jain acharyas.

It is as follows- Sutt’-attha-rayaṇa-bharie khama-dama-maddava-guṇehi sampanne Deviḍḍhi-khamāsamaṇe Kāsava-gotte paṇivayāmi - Kalpa Sūtra Sthavirāvalī, final verse The above text, translated into English:- I revere the Kṣamāśramaṇa Devarddhi of the Kāśyapa gotra, who wears, as it were, the jewel of the right understanding of the Sūtras and possesses the virtues of patience, self-restraint and clemency.

- Kalpa Sūtra Sthavirāvalī, final verse (Translated by Hermann Jacobi in 1884)[14] Devardhigani's legacy extends beyond his scholarly achievements and is visible in the aagams (canonical texts) edited and written under his guidance.