Theravada Buddhism is the dominant religion in five Southeast Asian countries: Sri Lanka, Thailand, Myanmar, Laos, and Cambodia. The shared Dhamma-Vinaya (Teaching and Discipline) unites them, but each country has developed its own distinct monastic culture, ritual style, and national identity. This article gives a brief tour of the regional schools, with attention to their shared foundation and their distinct characters.

Sri Lanka #

Buddhism arrived in Sri Lanka in the 3rd century BCE with the mission of Mahinda, son of the Emperor Ashoka. The tradition took root, survived Portuguese and Dutch colonial rule, and remains central to Sri Lankan identity. The Pali Tipitaka was first written down in Sri Lanka in 29 BCE.

Modern Sri Lankan Buddhism is associated with figures like Anagarika Dharmapala, who founded the Maha Bodhi Society in 1891 and was a key figure in the global Buddhist revival of the 19th-20th centuries.

The Sri Lankan tradition is particularly associated with the Abhayagiri and Mahavihara monasteries, the two great monastic complexes of ancient Anuradhapura. The Mahavihara became the dominant school, but the Abhayagiri was influential until the 12th century, when it was suppressed by the Mahavihara-aligned kings. The Theravada that survived in Sri Lanka is the Mahavihara lineage.

A modern revival movement, the Venerable Henepola Gunaratana and the Bhavana Society, has continued the meditation tradition. The Sri Lankan forests have also been the home of the forest meditation tradition, which has spread to the West.

Thailand #

Thai Theravada has long been a state religion, with the Sangha (monastic community) historically supported by the monarchy. Thailand is known for:

  • Strong forest traditions (e.g., the lineages of Ajahn Chah and Ajahn Mun)
  • The Dhammayut and Mahanikaya monastic orders
  • A rich tradition of Buddhist scholarship and national feast days like Vesak

The Thai Sangha is organized into two main orders. The Mahanikaya is the larger, more traditional order. The Dhammayut was founded in the 19th century by Prince Mongkut (later King Rama IV) as a reform movement, with stricter discipline and emphasis on meditation. The royal family is traditionally associated with the Dhammayut order.

The Thai forest tradition is one of the most important in the modern Buddhist world. Ajahn Chah (1918-1992) and his students — including Ajahn Sumedho, who established monasteries in the West — have been particularly influential. The Theravada Monasteries & Daily Life article gives a sense of what monastic life is like in this tradition.

Myanmar (Burma) #

Myanmar is the heartland of the modern Vipassana movement. The 20th century saw the rise of the “meditation explosion” — a rapid spread of lay and monastic meditation practice, especially associated with:

  • Ledi Sayadaw (1846-1923) and his analytical tradition
  • Mahasi Sayadaw (1904-1982) and the “noting” method
  • S.N. Goenka, a layman trained in the Burmese tradition, who spread 10-day courses worldwide
  • Pa Auk Sayadaw, who emphasizes the jhanas

Myanmar is also the home of the Shwedagon Pagoda in Yangon, one of Buddhism’s most sacred sites. The pagoda is said to contain relics of the four previous Buddhas of our kalpa, and is the focal point of Burmese Buddhist devotion.

The Burmese tradition is also marked by a long history of political engagement. The monks have played an important role in the country’s modern political struggles, including the Saffron Revolution of 2007 and the more recent protests following the 2021 military coup. The relationship between Buddhism and politics in Myanmar is complex and contested.

Cambodia #

In Cambodia and Laos, Theravada is the national religion. Cambodia’s Mahayana and Theravada heritage blended over centuries, but the dominant modern form is Theravada, with a strong monastic culture that was nearly destroyed under the Khmer Rouge (1975-1979) and has been carefully rebuilt since.

The Khmer Rouge targeted the Buddhist institutions specifically. The vast majority of monks were defrocked or killed, the monasteries were destroyed, and the tradition was nearly annihilated. The rebuilding has been one of the most remarkable cultural restorations in modern history, with monastic life gradually restored and the Sangha re-established.

Modern Cambodian Buddhism is associated with figures like Maha Ghosananda, a monk who was nominated for the Nobel Peace Prize for his work in reconciliation. Cambodian Buddhism has also been influenced by the Thai forest tradition, with many Cambodian monks studying in Thailand.

Laos #

Laos has a strong Theravada tradition with a distinctive local character. The Sangha is supported by the state, and the monastic culture is closely integrated with village life. The Lao Sangha is one of the smaller national Sanghas in Southeast Asia, but it is culturally vibrant.

The capital, Vientiane, is home to the That Luang, the most sacred stupa in Laos. The annual That Luang Festival is one of the most important Buddhist celebrations in the country, drawing pilgrims from across the region. The UNESCO heritage town of Luang Prabang, with its many monasteries and the daily alms round, is one of the most atmospheric Buddhist sites in Southeast Asia.

Vietnam #

In southern Vietnam, a small Theravada community exists alongside the dominant Mahayana. The Khmer Theravada tradition in southern Vietnam is closely connected to the Cambodian tradition, and the monks often study in Cambodia.

The Vietnamese Buddhist tradition as a whole is a Mahayana tradition (Truc Lam, the Zen-Pure Land synthesis), but the Theravada presence is significant, especially in the Mekong Delta. The Vietnamese Buddhist Sangha, the main Buddhist organization in the country, includes both Mahayana and Theravada practitioners.

Common features #

Despite the regional variation, the Theravada countries share several features:

  • Pali as the scriptural language. The suttas are studied in Pali, the commentaries in Pali or local languages.
  • The bhikkhu (monk) and bhikkhuni (nun) traditions. The full ordination lineage has been preserved in the monastic communities, with the bhikkhuni ordination being revived in the modern era.
  • Strong merit-making practices. The offering of food to monks, supporting monasteries, and the practice of dana (generosity) are central to lay life.
  • Major holidays. Vesak (the Buddha’s birth, awakening, and parinirvana), Asalha Puja (the first sermon), and Buddhist New Year are observed across the region, with local variations.
  • The alms round (pindapata). The daily round, in which monks walk through the community and receive food, is a unifying practice.
  • The full moon observance (Uposatha). The new and full moon days are times of intensified practice and lay observance.

A note on the modern Theravada revival #

In the 20th century, Theravada saw a remarkable revival. The “meditation explosion” in Myanmar, the forest tradition in Thailand, the modernization of the Sri Lankan Sangha, and the rebuilding of the Cambodian Sangha are all part of this revival. The export of Theravada to the West — through the Vipassana movement, the Thai forest tradition, and other channels — has been one of the most significant developments in modern Buddhism.

The modern Theravada revival has not been without tensions. Some traditionalists worry about the secularization of the practice, the influence of Western teachers, and the weakening of the monastic discipline. Others see the revival as a sign of the tradition’s vitality and its ability to adapt to new contexts.

The two views are not necessarily in conflict. The Theravada tradition has always adapted to local contexts — the Sri Lankan, Thai, Burmese, and Cambodian forms are themselves adaptations. The modern Western adaptations are part of this same process.

The Theravada diaspora in the West #

The Theravada tradition has established a significant presence in the West. Major centers include:

  • The Insight Meditation Society (IMS) in Barre, Massachusetts — one of the earliest Western Vipassana centers
  • Spirit Rock Meditation Center in California — a major Vipassana center
  • Abhayagiri Monastery in Northern California — a Thai forest tradition monastery
  • The Cambridge Insight Meditation Center in Massachusetts — founded by the Venerable Thich Nhat Hanh and other teachers
  • The S.N. Goenka centers — present in many countries, offering 10-day courses

The Western Theravada centers have developed their own style of practice, often more accessible to laypeople than the traditional monastic practice. The teachers are often Western, with their own interpretation of the tradition.

The future of Theravada in Southeast Asia #

The Theravada countries of Southeast Asia are facing significant challenges in the 21st century. The rapid social change, the decline of monasticism in some regions, the political pressures on the Sangha, and the rise of secularization are all part of the picture.

In Myanmar, the political crisis has placed the Sangha in an extremely difficult position, with monks caught between the military government and the pro-democracy movement. The future of the Sangha in Myanmar is uncertain.

In Thailand, the Sangha has been the subject of various controversies, including scandals involving senior monks and debates about the role of the Sangha in the modern state. The Thai Sangha continues to be a powerful institution, but it is also facing new pressures.

In Sri Lanka, the Sangha has been closely tied to the Sinhala-Buddhist nationalism that has shaped the country’s recent politics. The 2009 end of the civil war and the subsequent political developments have had significant impacts on the religious landscape.

The future of the tradition in the region is, in some ways, an open question. The Theravada Buddhism of the 21st century will not be the same as the Theravada Buddhism of the 20th, and the changes will be both losses and gains. The basic teachings — the Four Noble Truths, the Noble Eightfold Path, the Three Marks of Existence — will remain, even as the institutional forms change.