Antigoni Valakou (Greek: Αντιγόνη Βαλάκου; 24 March 1930 – 12 November 2013) was one of Greece's most important film and stage actresses.
In the early 1950s she became known as an "ingénue", before joining the National Theater of Greece, where she starred in productions of plays by Shakespeare, Charles Morgan, Bernard Shaw and Jean Anouilh, Arthur Miller and others.
She performed more than 120 roles including Maria Stuart, Hedda Gabler, Juliet, Nora, Bernarda Alba, Electra, Antigone, Cassandra, Medea, Agauë, Iphigenia, Jocasta, etc.
Her most recent appearances on stage were in the title roles in Martin Sherman's Rose in 2000 and Stephen Temperley's Madame Flo in 2011.
She appeared in more than fifteen films, and also worked in radio and television, mostly in plays adaptations.