Rua may refer to the following:

• In Polynesian mythology (Tahiti), Rua is the god of artisans.
• Rua or Ruga the Hun, also referred to as Rhuas, was a warlord who united the Huns under his sole kingship by 432. In 434, he was succeeded by his nephews Attila and Bleda.
• Rua is a Portuguese word meaning street.
• Rua is a Portuguese parish in the municipality of Moimenta da Beira. T
• Rua is a Maori word meaning two.
• Rua is a variety of potato available in New Zealand.