What are the two most widely practiced religious in Southeast Asia?

1. Islam. Islam is the largest religion in Southeast Asia, with over 240 million adherents. It is the state religion of Indonesia, Malaysia, and Brunei. Islam was brought to Southeast Asia by Arab traders and missionaries in the 7th century.

2. Buddhism. Buddhism is the second largest religion in Southeast Asia, with over 135 million adherents. It is the state religion of Thailand, Cambodia, Laos, and Myanmar. Buddhism was introduced to Southeast Asia from India in the 3rd century BCE.