Lionychus is a genus of beetles in the family Carabidae, containing the following species:
Lionychus albivittis Bates, 1886Lionychus albonotatus (Dejean, 1825)Lionychus anamalai Jedlicka, 1969Lionychus basalis Peringuey, 1896Lionychus beccarii Gestro, 1889Lionychus bivittatus Fairmaire, 1899Lionychus chujoi Jedlicka, 1966Lionychus cinctus Chaudoir, 1848Lionychus damarensis Kuntzen, 1919Lionychus fleischeri Reitter, 1908Lionychus himalayicus Andrewes, 1931Lionychus horni Dupuis, 1913Lionychus laetulus Peringuey, 1904Lionychus laosensis Jedlicka, 1966Lionychus marginellus Schmidt-Goebel, 1846Lionychus maritimus Fairmaire, 1862Lionychus ninini Marion, 1989Lionychus orientalis K.Daniel, 1901Lionychus planus Mateu, 1978Lionychus quadrillum (Duftschmid, 1812)Lionychus sturmii (Gene, 1836)