Serta may refer to: Sertã, a municipality in central Portugal Sertã (parish), a civil parish in the municipality Serta (company), a mattress company based in the United States Serto, the western form of the Syriac alphabet An alternative spelling of Sêrtar County, Garzê Tibetan Autonomous Prefecture, People's Republic of China Serta, an ancient and titular bishopric of the Catholic Church in North Africa