Bibhutibhushan Datta (also Bibhuti Bhusan Datta; Bengali : বিভূতিভূষণ দত্ত, Bibhūtibhūṣaṇ Datta) (1888–1958) was a historian of Indian mathematics. Datta came from a poor Bengali family. He was a student of Ganesh Prasad, studied at University of Calcutta and secured the master's degree in mathematics in 1914 and doctorate degree in 1920 in applied mathematics. He taught at Calcutta University where he was Lecturer at University Science College, and during 1924–1929 he was Rhashbehari Ghosh Professor of Applied Mathematics. During the 1920s and 1930s he created a reputation as an authority on the history of Indian mathematics. He was also deeply interested in Indian philosophy and religion. In 1929 he retired from his professorship and left the University in 1933, and became a sannyasin (a