Kostas Kazakos (Greek: Κώστας Καζάκος) (alt. sp. Costas Kazakos) (born 29 May 1935 in Pyrgos, Ilia), (with family origins from the Mani Peninsula) is a Greek actor, director, and politician.
He was married to the famous actress Tzeni Karezi with whom he has a son. In 1997 he married the actress Jenny Jolia.
In the 2007 Greek legislative election, he was elected to the Greek Parliament as a candidate of the Communist Party of Greece. He was reelected in 2009.