Acharya Jnansagar or Gyansagar was a Digambara Jain Acharyas of 20th century who composed many Sanskrit epics. He was initiated by Acharya Vidyasagar.

He was born as Bhooramal Chhabda. His father was Chaturbhuj and mother Ghritbhari devi. He was second of five brothers (Chhaganlal being the eldest and Gangaprasad, Gaurilal and Devdatt being the younger brothers).

After completing primary studies in his village, he further studied Sanskrit and swadwad in Banaras. He was initiated a kshullak (Junior monk) by Acharya Veersagar who belonged to the lineage of Acharya Shantisagar. He was then named kshullak Gyanbhusan. He remained a kshullak for 2 years and 2 more years as Ailak before becoming a Muni (Full monk).

He was initiated a monk by Acharya Shivsagar who also belonged to the lineage of Acharya Shantisagar, in Khaniya ji, Jaipur in 1959. He was further elevated to the Acharya status in 1968 at Naseerabad, Rajasthan.