The Kitáb-i-`Ahd (Arabic: ﻛﺘﺎﺏ ﻋﻬﺪﻱ literally "Book of My Covenant") is the Will and Testament of Bahá'u'lláh, the founder of the Bahá'í Faith, where he selects his son `Abdu'l-Bahá as his successor. It was written at least one year before Bahá'u'lláh died in 1892. An English translation is included in the Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas, published in 1978.
While the Tablet of the Branch, composed in the Adrianople period had clearly signaled a high station for "the Branch of Holiness" and the Kitáb-i-Aqdas has specified that this high station involved leadership of the Bahá'í community after Bahá'u'lláh's passing, it was only with the unsealing of the Kitáb-i-`Ahd after the passing of Bahá'u'lláh in 1892 that it was confirmed that the Branch referred to was indeed `Abdu'l-Bahá.