Sant Pere de Vilamajor is a village and municipality in the province of Barcelona, in the autonomous community of Catalonia, Spain. It lies in the comarca of Vallès Oriental, in the hinterland north of Barcelona toward the Montseny massif.
The municipality covers an area of 13.8 square kilometres (5.3 square miles). Its population in 2014 was 4,248. The settlement is centred on the village of the same name, which grew up around the church of Sant Pere, and the municipality also includes the historic nucleus of Vilamajor and scattered rural dwellings.
The village is named for its church, Sant Pere, and the name Vilamajor refers to the wider historic territory of which it formed part. It is connected by road to the neighbouring towns of the Vallès Oriental and to the Montseny area.