Wat Rakhang Khositaram Woramahawihan, วัดระฆังโฆสิตารามวรามาหาวิหาร, is a royal temple of the second grade of Woramahawihan, which was built during the Ayutthaya Period. Its original name was Wat Bangwa Yai. In 1769 (B.E. 2312) the temple was raised to be a royal temple by King Taksin the Great. He then graciously ordered the transfer of Phra Tripitaka (Buddhist scriptures) from Nakhon Si Thammarat province to be revised. In the reign of King Rama I, an ancient bell was found at the temple and the King had the bell moved to the Temple of the Emerald Buddha (Wat Phra Kaew) and built five new bells to donate to the temple. Thence it was called Wat Rakhang (which means Bell Temple). A major restoration was carried out by Somdet Krom Phraya Thepsudawadi, the eldest sister of King Rama I. The temple was used as a residence by Somdet Phra Sangkharat Si, the first Supreme Patriarch of the Rattanakosin Period and by Somdet Phra Buddha Chan (Toh Phrom Rangsi).
There is an old Tripitaka Hall situated in the temple area. It was the original residence of King Rama I when he was still Phra Ratchawarintra and Thonburi was still the capital.
