Agia Paraskevi (Greek: Αγία Παρασκευή, Agía Paraskeví) is a suburb and a municipality in the northeastern part of the Athens agglomeration, Greece.

Agia Paraskevi is situated near the northern edge of the forested Hymettus mountain range, 9 km (6 mi) northeast of Athens city center.

The National Center of Scientific Research Demokritos, which hosts the sole nuclear reactor in Greece, is situated in Agia Paraskevi.

The realization that this plan would demand the felling of a considerable number of trees, as well as spurring an increase in noise pollution, predictably aroused the opposition of the local population, who requested a different solution: a covered road.

At length police arrived and managed to force the demonstrators off the site; eventually the construction of the two highways began, and was completed in 2001.

The Lycée Franco-Hellénique Eugène Delacroix (LFH), a French international school, is in the town and The American College of Greece.