Brook Antony Bernacchi OBE, QC, JP (Chinese: 貝納祺; 22 January 1922 – 22 September 1996) was a lawyer and politician in Hong Kong. He was the long-time chairman of the Reform Club of Hong Kong, the then quasi-opposition party in the colony and the longest serving elected officeholder in Hong Kong history, sitting on the Urban Council of Hong Kong, from 1952 to 1981, 1983 to 1986 and 1989 to 1995. He was well known for his efforts of pushing direct elections and political reform in Hong Kong.