OVAR, a town of Portugal, province of Beira, stands near the mouth of a river of the same name, 15 miles N. of Aveiro, and 22 S. of Oporto. It is well built, but unhealthy; and consists of one long street, well paved and clean. There is a harbour and a mole. The inhabitants are engaged in fishing, and carry on some trade. Pop. 10,500.