Ōme, city, Tokyo to (metropolis), east-central Honshu, Japan, on the Tama River. An early trade centre and post town, it was known as a weaving centre for cotton textiles. Other traditional industries included the production of lumber and woodwork. Ōme became a municipality in 1951 when it and two neighbouring villages were amalgamated. Industrial plants have been constructed on the outskirts of the city area; electrical machinery and textiles (mainly bedclothes) are major products. Ōme is the gateway to Chichibu-Tama National Park; a shrine crowns Mount Mitake, which rises within the city area. Area 125 square miles (323 square km). Pop. (2005) 142,333; (2010) 139,339.