Anthousa (Greek: Ανθούσα, before 1928: Ρέζνα – Rezna),[2] is a small town in the municipal unit of Tsotyli, Kozani regional unit, Greece.

[3] Rezna was a mixed village and a part of its population were Greek speaking Muslim Vallahades.

[4][5] The 1920 Greek census recorded 380 people in the village, and 340 inhabitants (60 families) were Muslim in 1923.

[6] Following the Greek–Turkish population exchange, Greek refugee families in Rezna were from Pontus (35) in 1926.

[6] This Western Macedonia location article is a stub.