Ronald Owen Hall (; Cantonese: "Ho Ming Wah"; 22 July 1895 in Newcastle upon Tyne – 22 April 1975 in Lewknor, Oxfordshire) was an Anglican missionary bishop in Hong Kong and China in the mid 20th century. As an emergency measure during the Second World War, with China under Japanese occupation, he ordained Li Tim-Oi as the first woman priest in the Anglican Communion.