What are the 12 major religions of the world? Buddhism, Christianity, Confucianism, Hinduism, Islam, Jainism, Judaism, Shinto, Sikhism, Taoism, and Zoroastrianism. Are there more human religions or more human languages in the world? There are some 4,300 religions of the world compared with 6,800 living languages spoken somewhere in the world.Stephen Juan, Ph.D. is an anthropologist at the University of Sydney. What are the top 5 religions in the world? Largest religious groups • Christianity (31.5%) • Islam (23.2%) • Hinduism (15.0%) • Buddhism (7.1%) • Folk religions (5.9%) Which religion is growing fast in the world? Muslims still have the highest birth rate among the world's major religious groups. According to the Carnegie Endowment for International Peace, the World Christian Database as of 2007 has Islam as the fastest-growing religion in the world.