Akrisios (or Acrisius) is a person in Greek mythology. He was the King of Argos. He is the father of Danaë, and grandfather of Perseus.
Akrisios was told by an oracle that he would be killed by his grandchild. Because of that he put his daughter Danaë in a tower where noone was allowed to enter, so she could not have a child. But the god Zeus could enter in the form of a golden rain, and with him her child was Perseus.