Olhão, officially known as the City of Olhão da Restauração, is a city and municipality located in the Algarve region of southern Portugal. It covers an area of 130.86 km2 (50.53 sq mi) and had a recorded population of 45,396 in 2011.
The city serves as a significant fishing port and tourist center situated near the regional capital of Faro. It forms part of a single urban agglomeration with Faro, contributing to a larger conurbation that includes Loulé and Tavira across the eastern and central Algarve regions.