Harmonia (; ), in ancient Greek religion, is the immortal goddess of peace, harmony and concord. Her Roman counterpart is Concordia, and her Greek opposite is Eris, whose Roman counterpart is Discordia. Her siblings are Eros/Cupid, Phlegyas, Adrestia, and the twins Phobos and Deimos. Her parents are the Goddess of Love, Aphrodite, and the God of War, Ares.