Argyro (Renia) Louizidou (Thessaloniki, July 18, 1966) is a Greek actress. She studied at the Anatolia American College, and then studied philology at the Philology Department of the Philosophical School of AUTH, as well as acting at the Higher Drama School of the State Theater of Northern Greece (KTHBE)[1][2]. She has appeared in several well-known Greek television series, such as Oi Paradektoi Oi trei harites, Tis Ellados ta children, Petros and his girls To bis eksamartein, And the married have a soul and the series To kafe tis Haras. He appeared in the films Safe Sex, Pamphtochi A.E., Crying came out of Paradise, Politiki kitchen and starred in Politiki kitchen. Rena Louizidou is the only actor who has played in the two most commercial Greek films of all time.

Filmography