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.

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