Nicholas Kalogeropoulos (Greek: Νικόλαος Καλογερόπουλος; born 18 February 1945), also known as Nicky Kalo,[1][2] is a retired Greek tennis player who won a bronze medal at the 1971 Mediterranean Games.

In doubles, he finished runner-up at the 1968 Italian Open.

[3] Kalogeropoulos was born in Costa Rica to Greek parents, where he started training in tennis and spent many years of his life.

In 1962, he won the junior Wimbledon and French Championships.

[2] In 1966, he married fellow tennis player Carol-Ann Prosen.