Scarabaeinae is a globally distributed coprophagous coleopteran group with southeast Asia and Africa as the key areas of distribution. Located in the southern part of China, Hong Kong has subtropical climate and diverse habitats supporting a high diversity of scarabaeines. This paper gives a detailed review on Scarabaeinae from Hong Kong, including the new records to Hong Kong, photographic records of type specimens from Hong Kong, and identification keys to genera and species. A total of 13 genera and 51 species of scarabaeines were recorded in Hong Kong. Among them, 14 species were new records to Hong Kong found in the authors’ recent surveys, viz. Caccobius (Caccophilus) brevis Waterhouse, 1875, Copris (s. str.) punctatus Gillet, 1910, C. (s. str.) szechouanicus Balthasar, 1958, Microcopris propinquus Felsche, 1910, Onitis excavatus Arrow, 1931, Oni. intermedius Frivaldszky, 1892, Oni. subopacus Arrow, 1931, Onthophagus brutus Arrow, 1931, Ont. tricolor Boucomont, 1914, Ont. (Matashia) lenzi Harold, 1874, Ont. (s. str.) roubali Balthasar, 1935, Ont. (Parascatonomus) horni Balthasar, 1935, Scarabaeus (Kheper) erichsoni Harold, 1867 and Sisyphus (s. str.) indicus Hope, 1831. Onthophagus (Paraphanaeomorphus) trituber jacobsoni Kabakov, 2006 was found to be a new synonym of the nominate subspecies. Catharsius davidis Deyrolle & Fairmaire, 1878 and Copris davidis (Deyrolle & Fairmaire, 1878) were found to be the new synonyms of Catharsius molossus (Linnaeus, 1758). Hong Kong was also the only locality where Liatongus pugionatus and Onthophagus convexicollis were recorded over the world.