The Macronyssidae are a family of parasitic mites in the order Mesostigmata.

[1] Arachnyssus Ma Liming, 2002 Argitis Yunker & Saunders, 1973 Bdellonyssus Fonseca, 1941 Chiroecetes Herrin & Radovsky, 1974 Chiroptonyssus Auguston, 1945 Coprolactistus Radovsky & Krantz, 1998 Glauconyssus K. Uchikawa, 1991 Hirstesia Fonseca, 1948 Kolenationyssus Fonseca, 1948 Lepidodorsum R.C.Saunders & Yunker, 1975 Liponyssus Kolenati, 1858 Macronyssus Kolenati, 1858 Mitonyssoides C. E. Yunker, F. S. Lukoschus & K. M. T. Giesen, 1990 Mitonyssus C. E. Yunker & F. J. Radovsky, 1980 Neoichoronyssus Fonseca, 1941 Neoliponyssus Ewing, 1929 Nycteronyssus Saunders & Yunker, 1973 Ophionyssus Mégnin, 1883 Ornithonyssus Sambon, 1928 Oudemansiella Fonseca, 1948 Parichoronyssus Radovsky, 1966 Pellonyssus Clark & Yunker, 1956 Radfordiella Fonseca, 1948 Steatonyssus Kolenati, 1858 Synasponyssus Radovsky & Furman, 1969 Trichonyssus Domrow, 1959