Kaindorf is a municipality in the district of Hartberg-Fürstenfeld, in the Austrian state of Styria. It lies in the eastern part of Styria, within the Hartberg-Fürstenfeld administrative district, which was formed in 2013 from the merger of the Hartberg and Fürstenfeld districts.
The municipality is one of a number of small communities in this part of eastern Styria, a region characterised by rolling hills, farmland and scattered villages. Like other municipalities in the district, it functions as a local administrative unit providing services to its resident population.
Kaindorf shares its name with several other places in Austria and beyond, but the Styrian municipality in Hartberg-Fürstenfeld is distinct from these. Detailed information on its history, population and landmarks is limited in the available source material.