Dikaia (Greek: Δίκαια, [ˈðikea]) is a village in the northern part of the Evros regional unit in Greece.

In 2021, its population was 557 for the community, which includes the villages Dilofos, Krios and Palli.

It is located on the right bank of the river Evros, where it forms the border with Bulgaria.

Dikaia is bypassed by the Greek National Road 51/E85 (Alexandroupoli - Soufli - Orestiada - Ormenio - Svilengrad).

The settlement is served by railway station on the Alexandroupoli–Svilengrad line[2] with services to Alexandroupoli, Ormenio and Didymoteicho.