圣若昂-德雷（葡萄牙语：São João del-Rei）是巴西米纳斯吉拉斯州的一个市镇。总面积1463.593平方公里，总人口82954人，人口密度56.7人/平方公里。

• 米纳斯吉拉斯州市镇列表

São João del Rei, also spelled São João del Rey or São João del-Rei, is a Brazilian municipality in the state of Minas Gerais. It is a historical city with much XVIII century architecture. The current population is estimated in 85,000 inhabitants.

It is located in the drainage basin of the Rio Grande and its terrain is located in the Mantiqueira mountains. It is a centre for the cities in the south and southeast of Minas Gerais.