锡尔瓦尼亚（葡萄牙语：Silvânia）是巴西戈亚斯州的一个市镇。总面积2264.769平方公里，总人口19252人，人口密度8.5人/平方公里。

• 戈亚斯州市镇列表

Silvânia is a municipality in southcentral Goiás state, Brazil.

Silvânia is located 77 kilometers from the state capital of Goiânia, 180 km. from the national capital of Brasília, and 65 from the second most important city of the state, Anápolis. The highways that link it with other cities are: GO-330, GO-010, GO-139 and GO-437.