Bhai Ishar Das (d 1563) was the brother of Guru Amar Das, the third Sikh Guru and the father of the Chief Academic of the Sikhs, Bhai Gurdas. Bhai Ishar Das was also the brother of Bhai Manak Chand, the father-in-law of Bibi Amro, the daughter of the second Sikh Guru, Guru Angad and uncle of Bhai Jasoo.