In Greek mythology, Eros (UK: /ˈɪərɒs, ˈɛrɒs/, US: /ˈɛrɒs, ˈɛroʊs/;[2] Ancient Greek: Ἔρως, romanized: Érōs, lit. 'Desire') is the Greek god of love and sex. His Roman counterpart was Cupid ("desire"). In the earliest account, he is a primordial god, while in later accounts he is described as one of the children of Aphrodite and Ares and, with some of his siblings, was one of the Erotes, a group of winged love gods.

Eros appears in ancient Greek sources under several different guises. In the earliest sources (the cosmogonies, the earliest philosophers, and texts referring to the mystery religions), he is one of the primordial gods involved in the coming into being of the cosmos. In later sources, however, Eros is represented as the son of Aphrodite, whose mischievous interventions in the affairs of gods and mortals cause bonds of love to form, often illicitly. Ultimately, in the later satirical poets, he is represented as a blindfolded child, the precursor to the chubby Renaissance Cupid, whereas in early Greek poetry and art, Eros was depicted as a young adult male who embodies sexual power, and a profound artist.

A cult of Eros existed in pre-classical Greece, but it was much less important than that of Aphrodite. However, in late antiquity, Eros was worshiped by a fertility cult in Thespiae. In Athens, he shared a very popular cult with Aphrodite, and the fourth day of every month was sacred to him (also shared by Herakles, Hermes and Aphrodite).

Eros was one of the Erotes, along with other figures such as Himeros and Pothos, who are sometimes considered patrons of homosexual love between males. Eros is also part of a triad of gods that played roles in homoerotic relationships, along with Heracles and Hermes, who bestowed qualities of beauty (and loyalty), strength, and eloquence, respectively, onto male lovers.

The Thespians celebrated the Erotidia (Ancient Greek: Ἐρωτίδεια) meaning festivals of Eros.

Aphrodite is an ancient Greek goddess associated with love, beauty, pleasure, passion and procreation. She was syncretized with the Roman goddess Venus. Aphrodite's major symbols include myrtles, roses, doves, sparrows, and swans. The cult of Aphrodite was largely derived from that of the Phoenician goddess Astarte, a cognate of the East Semitic goddess Ishtar, whose cult was based on the Sumerian cult of Inanna. Aphrodite's main cult centers were Cythera, Cyprus, Corinth, and Athens. Her main festival was the Aphrodisia, which was celebrated annually in midsummer. In Laconia, Aphrodite was worshipped as a warrior goddess. She was also the patron goddess of prostitutes, an association which led early scholars to propose the concept of "sacred prostitution" in Greco-Roman culture, an idea which is now generally seen as erroneous.

In Hesiod's Theogony, Aphrodite is born off the coast of Cythera from the foam (ἀφρός aphrós) produced by Uranus's genitals, which his son Cronus has severed and thrown into the sea. In Homer's Iliad, however, she is the daughter of Zeus and Dione. Plato, in his Symposium 180e, asserts that these two origins actually belong to separate entities: Aphrodite Ourania (a transcendent, "Heavenly" Aphrodite) and Aphrodite Pandemos (Aphrodite common to "all the people"). Aphrodite had many other epithets, each emphasizing a different aspect of the same goddess, or used by a different local cult. Thus she was also known as Cytherea (Lady of Cythera) and Cypris (Lady of Cyprus), because both locations claimed to be the place of her birth.

In Greek mythology, Aphrodite was married to Hephaestus, the god of fire, blacksmiths and metalworking. Aphrodite was frequently unfaithful to him and had many lovers; in the Odyssey, she is caught in the act of adultery with Ares, the god of war. In the First Homeric Hymn to Aphrodite, she seduces the mortal shepherd Anchises. Aphrodite was also the surrogate mother and lover of the mortal shepherd Adonis, who was killed by a wild boar. Along with Athena and Hera, Aphrodite was one of the three goddesses whose feud resulted in the beginning of the Trojan War and she plays a major role throughout the Iliad. Aphrodite has been featured in Western art as a symbol of female beauty and has appeared in numerous works of Western literature. She is a major deity in modern Neopagan religions, including the Church of Aphrodite, Wicca, and Hellenismos.