Nova Petrópolis is a municipality in the Southern Brazilian state of Rio Grande do Sul. The main town and seat of the municipality is also called Nova Petropolis. It is located in the Serra Gaúcha region, at 29º22'35" South, 51º06'52" West, about 100 km north of Porto Alegre, the state capital city. Nova Petropolis is situated at an average altitude of 580m above sea level and covers an area of 293 km².