Thailand is a predominantly Buddhist country with long-established Muslim, Christian, Hindu, Sikh and Chinese-folk communities. Here is a respectful, factual overview of who worships what, where, and how faith shapes everyday life — with every figure sourced and kept current.
Figures reported by Thailand’s Department of Religious Affairs (December 2021), as published in the US State Department’s 2023 Report on International Religious Freedom. Thailand’s total population was estimated at about 69.8 million (mid-2023). Percentages are periodic estimates and may be updated as new data is published.
Thai law officially recognises five religious groups — Buddhists, Muslims, Brahmin-Hindus, Sikhs and Christians. There is no official state religion, though the constitution requires the King to be a Buddhist and the upholder of religions. Registration is not mandatory, and unregistered groups generally operate freely. Insulting or defaming a recognised religion — Buddhism and its clergy in particular — is prohibited by law.
Buddhism is the faith of the large majority and is deeply woven into Thai public life — temples (wat), the monastic community (sangha), merit-making, and the calendar of Buddhist holy days. Thai Buddhism is Theravada, organised into two main monastic schools, Mahanikaya (the older and larger) and Dhammayuttika. Most Thai Buddhists also blend in Hindu and animist customs, such as spirit houses and auspicious-day observances. The constitution requires the King to be a Buddhist and names him the upholder of religions.
Buddhism & temple etiquette →Islam is the largest minority faith and is the dominant religion in three southern border provinces — Narathiwat, Yala and Pattani — where most Muslims are ethnic Malay. The national Muslim community also includes people of South Asian, Chinese, Cambodian, Indonesian and ethnic-Thai heritage. About 99% are Sunni, with a small Shia community. The King appoints a state advisor on Islamic affairs (the Chularatchamontri / Grand Mufti), and mosques and halal food are widely available in Bangkok and across the south.
Christians are a small but long-established minority; more than half of the community is Roman Catholic, with Protestant churches also present. Many Christians are ethnic Chinese or belong to northern tribal groups. Churches, Catholic and Protestant schools, and English-language services are common in Bangkok, Chiang Mai and other cities with large expat populations.
Hindu-Brahmin tradition is small in numbers but culturally influential: Brahmin priests conduct royal and state ceremonies, and Hindu deities appear at revered urban shrines (such as the Erawan Shrine in Bangkok) visited by Thai Buddhists and visitors alike. Brahmin-Hindu is one of Thailand's five legally recognised religious groups.
Thailand has an established Sikh community, concentrated in Bangkok and larger cities and historically linked to South Asian trading families. Sikhism is one of the five officially recognised religions, and gurdwaras serve the community, most prominently in Bangkok's Phahurat district.
Many ethnic-Chinese Thais observe Chinese folk traditions and Taoism alongside Buddhism — seen in Chinese temples, ancestor veneration, and festivals such as Chinese New Year and the Vegetarian (Jay) Festival, which is especially prominent in Phuket. These practices often blend naturally with everyday Thai Buddhist life.
The Vegetarian Festival →Thailand is also home to small Jewish and Baha'i communities and to animist or spirit-belief traditions, particularly among some hill-tribe groups and blended into mainstream Thai practice through spirit houses (san phra phum) and local guardian spirits. Unregistered religious groups generally operate freely.
Faith in Thailand is personal and, in the south, closely tied to ethnic identity. Whatever your own beliefs, temples, mosques, churches and shrines are living places of worship — dress modestly, follow posted rules, and ask before photographing people at prayer. BAANLYY presents this material factually and is not a religious authority; we don’t infer or record anyone’s religion.
Source: US Department of State — 2023 Report on International Religious Freedom: Thailand (citing Thailand's Department of Religious Affairs, December 2021). Last reviewed 2026-07-24. We update this page as newer official figures are published.