Silvânia is a municipality in the southcentral part of Goiás state, Brazil. It lies within the Central-West Region of the country, in the interior highlands that characterize much of Goiás.
Like other municipalities in the state, Silvânia is an administrative unit that encompasses both a town center and the surrounding rural area. Goiás municipalities typically provide local public services and governance for their residents under the state and federal framework of Brazil.
Silvânia's position in southcentral Goiás places it within the broader economic and cultural sphere of the state's interior, a region historically associated with agriculture and livestock. The municipality shares the general climatic and geographic traits of Goiás, including a tropical savanna climate and terrain that forms part of Brazil's central plateau.