酒神节（Bacchanalia）是古希腊神话和古罗马神话中酒神狄俄倪索斯所举办的一种狂野而神秘的聚会。而Bacchanalia一词常常被形容为各种形式的酗酒。

起初，酒神节只在妇女中秘密举行。

The Bacchanalia were Roman festivals of Bacchus, based on various ecstatic elements of the Greek Dionysia. They seem to have been popular, and well-organised, throughout the central and southern Italian peninsula. They were almost certainly associated with Rome's native cult of Liber, and probably arrived in Rome itself around 200 BC but like all mystery religions of the ancient world, very little is known of their rites.