Arnos Manor Hotel is an 18th-century house, now a hotel, in Brislington, a southern suburb of Bristol, England. The original house dates from the 17th century. In around 1740 the estate was bought by William Reeve, a Bristol industrialist, who converted the first house to a service wing and built a new mansion next to it. Reeve's architect was likely James Bridges. In the 1760s, Reeve embellished the estate with the construction of a stable block in the form of a mock castle, now the Black Castle public house; an entrance archway, the Arno's Court Triumphal Arch; a bathhouse with a colonnaded frontage; and by giving the front of his new house an early Gothick makeover. The hotel is a Grade II* listed building, while the Black Castle pub is listed at Grade I, and the Triumphal Arch at Grade II*. The bathhouse was demolished in the 1950s, when its colonnaded façade was moved to Portmeirion in North Wales. This structure is also listed at Grade II*.