Tambinia is a genus of planthoppers (Hemiptera) in the family Tropiduchidae and typical of the tribe Tambiniini (erected by Kirkaldy in 1907); species are found in Australia and Southeast Asia.

[2] These are small insects, body length less than 10 mm.

Forehead and mesonotum with three carinae and the ocelli are very small.

In a 1982 revision (Fennah, 1982) Tambinia was included in the tribe Tambiniini: presently (2024) with about 14 other genera.

Tambinia is most similar to Nesotaxila, Kallitaxila and Kallitambinia[2] The genus Tambinia was established in Carl Stål in 1859 for three species from Sri Lanka: Tambinia languida Stål, Tambinia debilis Stål and Tambinia rufoornata Stål.