Greveniti (, ) is a village and a community of the Zagori municipality in Ioannina Regional Unit, Greece. Before the 2011 local government reform it was part of the municipality of East Zagori, of which it was a municipal district. The 2021 census recorded 109 inhabitants in the village. The community of Greveniti covers an area of 37.077 km<sup>2</sup>. The community consists of the villages Greveniti and Ampelos. The village of Greveniti is located in the eastern part of the Zagori region, close to a hill named Toufa.
Linguist Kostas Oikonomou writes the toponym with the suffix -itis has two derivations. The first Grevenitis stemming from the placename Grevena, originating from greveno 'rock' and derived from the Slavic grebenÃÂ 'ridge', 'rock', an interpretation which Oikonomou states aligns with the Aromanian name of the village Grebenitsli and the tradition where the village was settled by inhabitants of the Grevena region. The second from greveno, as in the above etymology and the suffix -itis, where grevenitis means 'place with many rocks'.
Greveniti has an Aromanian population and is an Aromanian speaking village. In the early 21st century, elderly people were bilingual in the community language and Greek, whereas younger residents under 40 might have understood the community language but did not use it.
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