Grigoris Valtinos (Greek: Γρηγόρης Βαλτινός, 1955) is a Greek actor. He has starred in all genres of theater, from ancient drama (Sophocles, Euripides, Aristophanes) to comedy and from prose to revue and has been distinguished for his performance, both in the classical and modern repertoire: Neil, Williams, Albee, Miller, Schnitzler, Andreyev, Turgenev, Gurney, Margiulis, etc. Among others, he has collaborated with directors such as: Jules Dassin, Andreas Voutsinas, Frank Hoser, Kostas Tsianos, Stamatis Fasoulis, Vassilis Papavassiliou, Roger Williams, George Theodosiadis, Diagoras Chronopoulos, Dinos Dimopoulos, Stavros Tsakiris.