Sak yant (สักยันต์) is the Thai practice of tattooing a yant: a sacred diagram of geometric lines, figures and syllables, usually written in Khom script. A monk or a lay master (ajarn) applies it while chanting [1], [2], [3]. The practice is also found in Cambodia, Laos and parts of Myanmar [1], [10]. In Thailand it is closely tied to the Wat Bang Phra temple in Nakhon Pathom, whose yearly Wai Khru ceremony drew thousands of devotees in 2024, according to Reuters [3], [7], [10].
Key facts
| Fact | Detail | Source |
|---|---|---|
| Thai name | สักยันต์ (sak, "to tattoo" + yant, from Sanskrit yantra) | [1], [2], [6] |
| Traditional tool | A heavy metal pin or rod (khem sak); a 2003 press report described the Wat Bang Phra tool as about 40 cm long with a split tip | [6], [9] |
| Temple most associated with it | Wat Bang Phra, Bang Kaeo Fa, Nakhon Chai Si district, Nakhon Pathom | [3], [7], [11] |
| Master most linked to it | Luang Phor Pern (Phra Udom Prachanat), 1923–2002, abbot of Wat Bang Phra from the mid-1970s | [8], [9], [10] |
| Annual ceremony | Wai Khru, reported in March in 2003, 2024 and 2026; the 2026 ceremony was held on 7 March | [9], [10], [11] |
What does sak yant mean?
The Thai word sak (สัก) means "to tattoo." English Wikipedia traces it to a Khmer word that goes back to a Mon-Khmer root meaning "to prick" [1]. Yant (ยันต์) comes from the Sanskrit yantra. Thai Wikipedia gives the Royal Institute definition: a diagram, numbers or characters written on cloth, skin, wood or metal and held to be sacred [2].
What is a yant made of?
The Thailand Foundation says the yantra began as a set of sacred symbols in Brahmanism and Hinduism, built from circles, triangles and other shapes [3]. In Thailand, Buddhist mantras and symbols added to these shapes or largely replaced them. Animist belief explains why animals appear beside script [3]. The Foundation describes the basic parts:
- Circle: read as the face of the Buddha or of Brahma, and as the unity of the universe [3].
- Triangle: read as the Triple Gem, or as Shiva, Brahma and Vishnu [3].
- Square: read as the four continents or the four elements [3].
- Picture yant: drawings of deities, people or animals, where the image carries the meaning [3].
- Skeleton: the crisscrossing lines that form the design. Lines drawn outside and detached from the main structure are called the "umbilical cord of the Buddha" [3].
Each element has its own spell, recited as it is drawn. The four elements, for example, use the syllables na ma pha tha [3]. The text is usually abbreviated Pali taken from Buddhist chants [3].
Sak yant history: from Khmer roots to Thai temples
Origin accounts are theories, not settled fact.
- Khmer origin. English Wikipedia says the practice is said to have begun in the Khmer Empire around the 9th century and reached Thailand through the Khmers [1].
- Tantric Buddhist origin. Thai Wikipedia reports that Prince Damrong Rajanubhab traced yantra to Tantric Buddhists, whose teaching passed through Burma before it reached Thailand [2].
- Written evidence. Thai Wikipedia says number yantra appear in Sukhothai-period evidence and in Ayutthaya-period folding manuscripts (samut khoi) [2].
Tattoos in Thai history and literature
Thai Wikipedia notes that Ayutthaya officials marked the wrists of conscripted people, a practice it presumes may date to the reign of King Borommatrailokanat. In the epic Khun Chang Khun Phaen, characters carry yant tattoos [2].
Under Rama V, masters such as Ajarn Plang of Wat Sawet tattooed Prince Chumphon. Thai Wikipedia says tattooing became popular before the Second World War through monks such as Luang Pu Suk of Wat Pak Khlong Makham Thao, and that after the war tattooing by lay masters became popular [2].
The Thailand Foundation says Thai men once took yant before forest travel or war, while men and women today more often choose designs linked in belief to popularity and fortune [3].
Scripts used in sak yant
Most Thai yant use Khom script (อักษรขอม). This is old Khmer script with added letters for Thai, Pali and Sanskrit [3]. In northern Thailand masters often write in Lanna script [3]. English Wikipedia adds Shan and Tai Lue scripts in the north, Lao Tham in Laos and Khmer in Cambodia [1].
Sak yant designs and what they are associated with
Designs vary by school. Thairath says the five-row yant has "no fixed form": it varies by school and by the teacher who inscribes it [4]. The table names the main designs and their visual elements. The third column reports belief only, as the sources record it.
| Design | Thai | What it looks like | Associated in Thai belief with (as reported) |
|---|---|---|---|
| Ha Taew (five lines) | ยันต์ห้าแถว | Five rows of Khom script | Each row is said to have its own association; see below [4], [2] |
| Gao Yord (nine spires) | ยันต์เก้ายอด | A frame rising to nine peaks | The nine virtues of the Buddha; said to guard against weapons [2], [3] |
| Paed Tidt (eight directions) | ยันต์แปดทิศ | Named for the eight compass directions | Kindness, invulnerability and protection in all eight directions [2] |
| Suea Phen (leaping tiger) | ยันต์เสือเผ่น | A tiger in mid-leap, usually on the chest [6] | Named as a design favoured by European clients, who tend to choose invulnerability designs [2] |
| Hanuman | ยันต์หนุมาน | The monkey god, described in a 2003 report as supposedly a great and clever fighter [9]; one named form is Hanuman Choen Thong, "Hanuman carrying a flag" [2] | Invulnerability and kindness-based popularity [2] |
| Hong Thong (golden swan) | ยันต์หงส์ทอง | A swan figure | Charm and kindness; said to make others fall in love [2] |
| Ching Chok (gecko) | ยันต์จิ้งจก | A gecko figure | Charm, popularity and good trade; named as favoured by Chinese and Hong Kong clients [2] |
What does the 5-line sak yant (Ha Taew) mean?
Ha Taew (ห้าแถว, "five rows") is five lines of script, often placed on the back of the right shoulder [6]. Thairath, writing in 2023, reports one school's belief about what each row is for [4]:
- Row one: the feng shui of a home, including three-way junctions, dead-end lanes and doors that face each other.
- Row two: "propping up" a declining horoscope.
- Row three: said to guard against sorcery, ghosts and bad luck.
- Row four: fortune and success in whatever one does.
- Row five: charm, said to earn goodwill from those who see the wearer.
Thai Wikipedia lists the five rows as kindness and popularity, boosting one's fate, success, one's zodiac sign and great charm [2]. The Thailand Foundation lists five blessings: popularity, luck, success, zodiac energy and charm [3]. Thairath adds that the yant is also called yant khrop chakkrawan (ยันต์ครอบจักรวาล), "universe-covering" [4].
What does Gao Yord (nine spires) mean?
Gao Yord (เก้ายอด, "nine peaks") is often placed on the back of the neck [6]. Thai Wikipedia and the Thailand Foundation both link its nine spires to the nine virtues of the Buddha [2], [3]. A 2022 Mahidol University master's thesis interviewed 15 people who wear it. It found that wearers build its meaning from the Itipiso chant in praise of the Triple Gem [5].
The study also reports a ritual rule that the Gao Yord must be the first yant received, read as marking out a distinct social space [5].
Tigers, Hanuman and other animal yant
Animal and figure yant are "picture yant," where the image itself carries the meaning [3]. A 2003 Globe and Mail report from Wat Bang Phra named Hanuman, dragons and geckos among the tattoo subjects. It also said that people in trance took on the behaviour of creatures including Garuda, lions, tigers, frogs, eels and snakes [9]. The Standard's 2026 report on the temple's ceremony mentions the leaping-tiger and Hanuman yant [11].
How sak yant is applied
Thailex says traditional Thai tattoos are made by hand with a khem sak (เข็มสัก), a heavy metal pin [6]. The Globe and Mail's 2003 report described the Wat Bang Phra tool as a metal rod about 40 cm long with a split tip, used for short, rapid pricks [9].
Ink tattoos and oil tattoos
- Ink tattoo (สักหมึก): a visible design [2]. The Globe and Mail's 2003 report described the temple's ink as a "secret recipe" of snake venom, herbs and cigarette ash, without naming a source for the claim [9].
- Oil tattoo (สักน้ำมัน): the design is pricked with oil instead of ink, for those who want an invisible tattoo [3]. Thai Wikipedia names common oils as a fragrant oil steeped in herbs (น้ำมันจันทร์หอมแช่ว่าน) or white sesame oil [2].
The teacher-honouring rite (khuen khru)
Before an ink tattoo, a khuen khru (ขึ้นครู) rite is performed. Thai Wikipedia lists the usual offerings as flowers, incense and candles, betel nut, miang (fermented tea leaves) or cigarettes [2]. The master calls on the teacher spirits and accepts the student, and chants mantras while tattooing [2].
Reuters reported in 2024 that, at Wat Bang Phra, participants were asked to give 100 baht (THB, 2024), flowers, incense and a pack of cigarettes for a new tattoo or an added inscription. It said elaborate sacred tattoos could cost as much as 20,000 baht (THB, 2024) [10].
Who gives sak yant?
Thailex says sak yant is given by gifted monks or specialist religious tattooists [6]. Christianity Today reported in 2024 that the artists are usually monks or other holy men, and that with celebrity-driven demand more tattoo artists now offer it without monks or ritual [12].
Sak yant rules: the customary precepts
Masters give wearers rules that differ by school. In the tradition's belief, breaking them makes the yant "fall away or fade" (หลุดหรือเสื่อม) [4].
- The five precepts. At the 2024 Wai Khru, Monk Tuk of Wat Bang Phra told Reuters the tattoos remind wearers to keep the five Buddhist precepts: no killing, stealing, sexual misconduct, lying or intoxicants [10]. The Standard reports the same requirement in 2026 [11].
- Moral rules. The Thailand Foundation lists avoiding adultery and not abusing one's parents [3]. Thairath's Ha Taew rules for men are: do not strike or curse your parents, do not have relations with a married woman, and do not disrespect teachers. For women the main rule concerns parents [4].
- Food rules. Some masters ban certain foods [1], [3].
- Everyday taboos. Christianity Today mentions a rule against walking under an unfinished bridge [12]. Thairath lists passing under a clothesline, a bridge or a house as not forbidden for the Ha Taew [4]. Taboos differ between lineages.
Wat Bang Phra and the Wai Khru sak yant festival
Wat Bang Phra (วัดบางพระ), formerly Wat Pak Khlong Bang Phra, is a Mahanikai temple in Bang Kaeo Fa subdistrict, Nakhon Chai Si district, Nakhon Pathom [7]. Thai Wikipedia dates its founding to about 1677 (2220 BE), late in the Ayutthaya period [7]. The temple is about 50 km west of Bangkok [9].
Luang Phor Pern
Luang Phor Pern (หลวงพ่อเปิ่น), later Phra Udom Prachanat, was born on 12 August 1923 in Bang Kaeo Fa. He was ordained at Wat Bang Phra in 1948 [8]. Thai Wikipedia says he learned spells and sak yant from Ajarn Him of Wat Bang Phra [8]. He became abbot in the mid-1970s (Thai Wikipedia pages give 1974 and 1975) and died on 30 June 2002 [7], [8]. Reuters says he refined and popularised the temple's style [10]. The current abbot, Phra Khru Anukun Phisankit (Sam-ang Pabhassaro), has led the temple since 2002 [7], [11].
What happens at the Wai Khru
Wai khru means "to honour the teacher." The Thailand Foundation says wearers attend to show respect and gratitude to their masters, ask pardon for faults and reaffirm their Buddhist commitments, and that the most famous Wai Khru is held each year at Wat Bang Phra by Luang Phor Pern's disciples [3].
- Date. It falls in March. On 8 March 2003 The Globe and Mail said that year's ceremony was set for 15 March [9]. Reuters's report of the 2024 gathering is dated 23 March 2024 [10]. The Standard reported the ceremony as held on 7 March 2026 [11]. The date differs from year to year.
- Crowd. Reuters reported "thousands" of devotees in 2024 [10]. In 2003 The Globe and Mail expected several hundred men [9]. The Standard gave no figure for 2026 [11]. Christianity Today, with no year attached, said about 10,000 people travel to the temple every March [12].
- Trance (khong khuen). The Standard describes khong khuen (ของขึ้น): some devotees with animal tattoos imitate the animal, in line with devotees' beliefs [11]. Reuters reported devotees shouting or running and being held back [10].
- Restrictions. The Standard reports that in 2026 menstruating women, pregnant women, children and people who had broken certain precepts were restricted from taking part [11].
Sak yant for foreigners: tourism and ethics debates
Thai Wikipedia names celebrity wearers such as Angelina Jolie and Steven Seagal. It says Chinese and Hong Kong clients tend to choose designs linked in belief to charm and trade, and European clients designs linked to invulnerability [2]. English Wikipedia says Jolie's tattoos were made by Ajahn Noo Ganpai, including a tiger yant in 2004 [1]. NPR names her tattooist as "Master Noo Kampai" [13].
The 2011 Culture Ministry controversy
In 2011, Culture Minister Nipit Intarasombat called for a ban on foreigners getting religious tattoos that offend Thais, after an incident on Phuket [13]. NPR explained that Thais regard the head as sacred and the feet as low, and that some foreigners had Buddhist images tattooed below the waist [13].
The ministry said it would print guidelines and inspect tattoo parlours. NPR noted that no tattoo was illegal under Thai law in 2011, and quoted Master Noo, who backed a crackdown on improper tattooing [13].
Commercialisation and religious identity
Christianity Today reported debate among Thai Christian converts over keeping their tattoos [12]. Reuters notes that the practice mixes spirituality with superstition rather than traditional Buddhist teaching [10].
Sak yant health and hygiene: what health authorities say
- Blood-borne infection. The US Food and Drug Administration warns that unsterile tattoo equipment and needles can pass on infections such as HIV and hepatitis, and that contaminated inks have also caused infections [15]. The NHS lists a tattoo made with unsterilised equipment as a less common way of catching hepatitis C, noting this is unlikely in licensed UK premises. It advises getting tattoos only from licensed premises [14].
- New, sealed needles. In 2018, Thai Post reported advice from Dr Methiphot Chatamethikul, director of the Bangkok Metropolitan Administration's disease control division: choose licensed shops and ask for a new needle opened in front of you. He warned that reused needles can pass on hepatitis B and C [16].
- Blood donation. The FDA notes that in the US a tattoo from a facility not regulated by the state, or one using unsterile equipment, may keep a person from giving blood or plasma for twelve months [15].
- Scope. These sources concern tattooing in general. None of them assesses temple sak yant specifically.