| Named By: | J. Szwedo & A. Stroinski in 2001 |
| Time Period: | Burdigalian |
| Location: | Dominican Republic |
| Size: | About 14.4 millimetres long |
| Diet: | Herbivore |
| Fossil(s): | Single specimen preserved in amber |
| Classification: | | Arthropoda | Insecta | Hemiptera | Nogodinidae | |
Tainosia is an extinct monotypic genus of planthopper in the Nogodinidae subfamily Nogodininae and at present, it contains the single species Tainosia quisqueyae. The genus is solely known from the early Miocene, Burdigalian stage, Dominican amber deposits on the island of Hispaniola.