Jankowskia is a geometer moth genus in the tribe Boarmiini of subfamily Ennominae. The genus was described by Oberthür in 1884.
It includes the following species:
Jankowskia acuta N. Jiang , D.Y. Xue & H.X. Han, 2010
Jankowskia athleta Oberthür, 1884
Jankowskia fuscaria fuscaria (Leech, 1891)
Jankowskia pseudathleta Sato, 1980
Jankowskia bituminaria (Lederer, 1853) (= J. tenebricosa)
Jankowskia taiwanensis Sato, 1980
Jankowskia viidaleppi Sato, 1985
The genus is named after Polish naturalist Michał Jankowski.