The Culture of Thailand is heavily influenced by Buddhism. Other influences have included Hinduism, conflict and trade with Southeast Asian neighbors such as Laos, Cambodia and Myanmar, and repeated influxes of Chinese immigrants.

Thai cuisine is known for its balance of five fundamental flavors in each dish or the overall meal - hot (spicy), sour, sweet, salty and bitter (optional). Although popularly considered as a single cuisine, Thai food is really better described as four regional cuisines corresponding to the four main regions of the country: Northern, Northeastern (or Isan), Central and Southern. Southern curries, for example, tend to contain coconut milk and fresh turmeric, while northeastern dishes often include lime juice.

Thai cuisine has been greatly influenced by its neighbors, especially India, China, Malaysia, and Laos. Many dishes are in fact Chinese dishes adapted to local tastes.

Thai dance is the main dramatic art form of Thailand. Thai dance, like many forms of traditional Asian dance, can be divided into two major categories that correspond roughly to the high art (classical dance) and low art (folk dance) distinction.

Thai classical dance drama include Khon, Lakhon, and Fawn Thai. Folk dance forms include dance theatre forms like Likay, numerous regional dances (Ram), the ritual dance Ram Muay, and homage to the teacher, Wai Khru. Both Ram Muay and Wai Khru take place before all traditional Muay Thai matches. The Wai is also an annual ceremony performed by Thai classical dance groups to honor their artistic ancestors.

Standard Thai, also known as Central Thai or Siamese, is the official language of Thailand, spoken by about 65 million people (1990) including speakers of Bangkok Thai (although the latter is sometimes considered as a separate dialect). Khorat Thai is spoken by about 400,000 (1984) in Nakhon Ratchasima; it occupies a linguistic position somewhere between Central Thai and Isan on a dialect continuum, and may be considered a variant or dialect of either.

Thailand is nearly 95% Theravada Buddhist, with minorities of Muslims (4.6%), Christians (0.7%), Mahayana Buddhists, and other religions.[1] Thai Theravada Buddhism supported and overseen by the government, with monks receiving a number of government benefits, such as free use of the public transportation infrastructure. The Thai Sangha is divided into two main orders, the Thammayut Nikaya and the Maha Nikaya, and headed by the Supreme Patriarch of Thailand, currently Somdet Phra Nyanasamvara Suvaddhana Mahathera. A recent reformist group, Santi Asoke, is forbidden to describe itself as Buddhist. Buddhism in Thailand is strongly influenced by traditional beliefs regarding ancestral and natural spirits, which have been incorporated into Buddhist cosmology.

Prior to the rise of Theravada Buddhism, both Indian Brahmanic religion and Mahayana Buddhism were present in Thailand. Influences from both these traditions can still be seen in the present day. Brahmanist shrines play an important role in Thai folk religion, and the Mahayana Buddhist influence is reflected in the presence of figures like Lokesvara, a form of the bodhisattva Avalokitesvara sometimes incorporated into Thailand's iconography.