Kalicharan Brahma (Bodo: कालिचरन ब्रह्मा 1862-1938), originally Kalicharan Mech, was a 20th-century social and religious reformer of Bodo society. He joined a new religion called Brahmo Dharma / Brahmoism Adi Brahmo Samaj faction in Calcutta around 1906, and he is reverentially called Gurudev or Guru Brahma by Bodo people of lower plains of Assam along holy Brahmaputra river. Other great Assamese Brahmos of the time include Gunabhiram Barua and Swarnalata Devi of the same faction, all of whom agitated against Colonialist Imperialism of any kind. The followers of this group are locally known as Brahmas in tribute to their religion and the holy river of which they are sons.
"Born in 1862, in Kajigaon village in Goalpara District, he became a great religious preacher of Brahmo faith and brought over revolutionary changes in Bodo society by his continuous and sustained programme of reformation against the prevailing Bathou worship. All the educated and enlightened section of the Bodo community including Rup Nath Brahma lent their all-round efforts in his reformatory programme, religious propagation through spread of education and political activism."