What is the name of Moana's pet pig?

Moana's pet pig is named Pua.

Pua is Moana's small, affectionate pig on the island of Motunui. Early in the film, Moana brings Pua with her when she attempts to go beyond the island's reef, hoping to find more fish as the village's food supply declines. The waves overwhelm them, and both return safely to shore.

Pua is easy to confuse with Heihei, Moana's other animal companion. Heihei is the dim-witted rooster who accidentally stows away on Moana's voyaging canoe and accompanies her for most of the ocean journey. Pua remains at home for the main voyage, although the character returns in Moana 2.

The name Pua distinguishes the pig from Moana's family members: her father is Chief Tui, her mother is Sina, and her grandmother is Tala. Motunui's community and its animals are part of the film's larger story about recovering the islanders' lost voyaging tradition and restoring Te Fiti's heart.