The architecture of Indonesia reflects the diversity of cultural, historical, and geographic influences that have shaped Indonesia as a whole. Invaders, colonizers, missionaries, merchants, and traders brought cultural changes that had a profound effect on building styles and techniques.

The culture of Indonesia has been shaped by long interaction between original indigenous customs and multiple foreign influences. Indonesia is centrally-located along ancient trading routes between the Far East, South Asia and the Middle East, resulting in many cultural practices being strongly influenced by a multitude of religions, including Buddhism, Christianity, Confucianism, Hinduism, and Islam, all strong in the major trading cities. The result is a complex cultural mixture, often different from the original indigenous cultures.