In Greek mythology, Uranus was the father of Aphrodite in the tradition where she arose from sea foam.
Hesiod’s Theogony presents Aphrodite as emerging from the sea after Cronus attacked his father Uranus and cast his severed genitals into the water. Foam gathered around them, and Aphrodite rose from it near Cyprus. Under this account, she is an ancient divine figure born before the younger Olympian generation, with Uranus as her father.
Homeric tradition gives a different genealogy, presenting Aphrodite as the daughter of Zeus and Dione. These two origin stories coexisted in Greek literature, which is why Aphrodite can appear both as a primordial sea-born goddess and as a daughter within the Olympian family.
The question’s wording identifies the sea-foam version specifically. Uranus is therefore the precise answer, not Zeus. Aphrodite’s sea birth also explains her lasting associations with Cyprus, the sea, beauty, desire, and maritime imagery.