Bhai Jivan Singh (13 December 1649 - 22 December, 1705) was the name given to "Bhai Jaita" after he had received the rites of initiation at the hands of Guru Gobind Singh on the day - 14 April, 1699 when the Khalsa was inaugurated. He was a Sikh from Patna, India who had belonged to the Majhabi (scavenger) caste.
He received initiation into Khalsa panth from Guru Gobind Singh who had previously given him the special honour by addressing him as "Ranghareta Guru Ka Beta" ("the young man of the Ranghar caste is the Guru's own son"). The Ranghar caste was a caste created for those born of a union between a Hindu and a Muslim. Both the children and their descendants were considered outcasts by the Hindus.
It was Bhai Jaita who had risked his life to recover and return the severed head of Guru Tegh Bahadur to the Guru for cremation. He had been sent to Delhi where he witnessed Guru Tegh Bahadur's beheading in Chandni Chowk on 24 November 1675.