The Shrine of the Báb is a structure in Haifa, Israel where the remains of the Báb, founder of Bábism and forerunner of Bahá'u'lláh in the Bahá'í Faith, have been buried; it is considered to be the second holiest place on Earth for Bahá'ís, after the Shrine of Bahá'u'lláh in Acre. Its precise location on Mount Carmel was designated by Bahá'u'lláh himself to his eldest son, `Abdu'l-Bahá, in 1891. `Abdu'l-Bahá planned the structure, which was designed and completed several years later by his grandson, Shoghi Effendi.

Crowning the design, as anticipated by `Abdu'l-Bahá, is a dome, which is set on an 18-windowed drum. That, in turn, is mounted on an octagon, a feature suggested by Shoghi Effendi. An arcade surrounds the stone edifice.

A restoration project of the exterior and interior of the shrine started in 2008 and was completed in April 2011.

The remains of the Báb were buried on March 21, 1909 in a six-room mausoleum made of local stone. In a separate room, the remains of `Abdu'l-Bahá were buried in November 1921. In 1929 three rooms were added to the mausoleum, and in 1949 the first threshold stone of the superstructure was laid by Shoghi Effendi. The construction was completed over the mausoleum in 1953 and was entirely paid for by Bahá'ís around the world.

Siyyid `Alí Muḥammad Shírází (Persian: سيد علی ‌محمد شیرازی‎; October 20, 1819 – July 9, 1850) was the founder of Bábism, and one of three central figures of the Bahá'í Faith. He was a merchant from Shíráz, Persia, who at the age of twenty-four (on May 23, 1844) claimed to be the promised Qá'im (or Mahdi). After his declaration he took the title of Báb (Arabic: باب‎) meaning "Gate". He composed hundreds of letters and books (often termed tablets) in which he stated his messianic claims and defined his teachings, which constituted a new sharí'ah or religious law. His movement eventually acquired tens of thousands of supporters, was opposed by Iran's Shi'a clergy, and was suppressed by the Iranian government, leading to the persecution and killing of thousands of his followers, called Bábís. In 1850, at the age of thirty, the Báb was shot by a firing squad in Tabríz.

Bahá'ís claim that the Báb was also the spiritual return of Elijah and John the Baptist, that he was the "Ushídar-Máh" referred to in the Zoroastrian scriptures, and that he was the forerunner of their own religion. Bahá'u'lláh, the founder of the Bahá'í Faith, was a follower of the Báb and claimed to be the fulfillment of his promise that God would send another messenger.