Chulalongkorn Day / Piyamararaj Day – Oct. 23, 2026

Chulalongkorn Day / Piyamararaj Day
Categories:
Tags:
CivicCultural HolidaysFederal
Where:
Thailand
Date change rule:
Every October 23, observed on Monday if Sunday
Holiday emoji:
🇹🇭

Chulalongkorn Day, also known as Piyamararaj Day, is celebrated every October 23 in Thailand. This national holiday commemorates the passing of King Chulalongkorn, one of Thailand’s most revered monarchs, known for his transformative reforms. Reflect on his lasting impact, learn about Thai history, and participate in remembrance events.

Want to sponsor Chulalongkorn Day / Piyamararaj Day? Learn how

Expected Chulalongkorn Day / Piyamararaj Day Deals

Chulalongkorn Day in Thailand is a solemn occasion focused on national remembrance rather than commercial deals. However, many cultural institutions, historical sites, and local businesses may offer special exhibitions or events to educate the public about King Chulalongkorn’s reign and reforms. Government agencies and educational bodies will host ceremonies. We will update this page with confirmed live events as October 23 approaches.

Platform Guide for Chulalongkorn Day / Piyamararaj Day

Facebook

Mention National Today (facebook.com/nationaltoday) and use #ChulalongkornDay. Share historical facts or images of commemorative events in Thailand.

X/Twitter

Mention @NatlToday and use #PiyamararajDay. Post about King Chulalongkorn’s key reforms or the significance of the day to modern Thailand.

Instagram

Tag @nationaltoday_ and use #ChulalongkornDay. Share photos of memorials, traditional Thai ceremonies, or historical landmarks associated with the King.

Social Media Tips for Chulalongkorn Day / Piyamararaj Day

Individuals

Visit historical sites or museums in Thailand that highlight King Chulalongkorn's reign. Reflect on his contributions to Thai society and share your appreciation.

Creators

Produce a short documentary or educational video about King Chulalongkorn's life and reforms. Interview historians or local Thais about his enduring legacy.

Brands

Thai businesses can share historical context about King Chulalongkorn's reforms and how they shaped the modern economy. Support local cultural preservation efforts.

Partners & Brands for Chulalongkorn Day / Piyamararaj Day

  1. Royal Household Bureau

    The principal administrative body of the Thai monarchy, responsible for organizing royal ceremonies and maintaining royal palaces. It plays a central role in commemorating Chulalongkorn Day.

  2. Ministry of Culture, Thailand

    Dedicated to promoting and preserving Thai culture, the Ministry organizes various events and exhibitions on Chulalongkorn Day to educate the public about the King's historical significance.

  3. Chulalongkorn University

    Founded by King Vajiravudh in 1917, named in honor of his father, King Chulalongkorn. As Thailand's first university, it embodies the King's vision for modern education and national development.

  4. Bangkok National Museum

    One of Southeast Asia's largest museums, housing a vast collection of Thai art and artifacts. It often features special exhibits related to the Chakri Dynasty and King Chulalongkorn's era.

  5. Thai Airways

    Thailand's national flag carrier, founded in 1960. As a symbol of modern Thailand's connectivity, it represents the nation's progress, a legacy rooted in King Chulalongkorn's modernization efforts.

  6. Dusit Palace

    A complex of royal residences built by King Chulalongkorn in the early 20th century, reflecting his architectural vision and desire to modernize the royal court. It stands as a testament to his reign.

  7. Tourism Authority of Thailand (TAT)

    The national tourism organization of Thailand, established in 1960. TAT promotes Thailand's rich cultural heritage, including historical sites and traditions associated with King Chulalongkorn's era.

Chulalongkorn Day / Piyamararaj Day Hero

King Chulalongkorn (Rama V)

Born in 1853, King Chulalongkorn, also known as Rama V, reigned Siam (now Thailand) from 1868 to 1910. He is revered for his progressive reforms, including the abolition of slavery, the establishment of a modern administrative system, and the introduction of railways and postal services. His diplomatic skills allowed Siam to maintain independence during a period of intense Western colonial expansion, solidifying his legacy as one of Thailand's most beloved and transformative monarchs.

History of Chulalongkorn Day / Piyamararaj Day

What is it like to be one of the most loved monarchs of all time? To truly understand, we have to ask King Chulalongkorn, the fifth monarch of Siam. He was also known as King Rama V. He is considered one of the greatest rulers in Thailand’s history.

Thailand was historically known as Siam and is officially known as the Kingdom of Thailand. It is a country in Southeast Asia with a population of about 70 million. Thailand shares borders with Cambodia, Laos, and Myanmar and has a maritime border with India and Indonesia. Thailand is a country that has witnessed several coups, political turmoil, and several rulers throughout its history. The region’s history started 20,000 years ago with continuous human habitation to the present day. Large-scale empires began to rule the area from Two B.C., starting with the Kingdom of Funan. The period also witnessed the spread of Hindu culture from India. By 1782, the Chakri Dynasty established the Rattanakosin Kingdom, with Rama I as the ruler of Siam.

The period that followed saw conflicts with neighboring nations with the involvement of European powers. Siam became powerful and extended its control and influence over the borders. They occasionally clashed with the Burmese but created suzerainty over large portions of Laos and Cambodia. After the untimely death of his predecessor due to malaria, Prince Chulalongkorn took the throne. During his time, he initiated many social, economic, and political reforms which further improved the living conditions of his citizens. He started centralization, abolished slavery, and established a privy council without bloodshed. The abolition of slavery was one of the keystone events in the history of Thailand. It made him the beloved Great King of all the people of Siam.

Chulalongkorn Day / Piyamararaj Day timeline

1,000,000 – 500,000 Years Ago
The First Evidence For Human Settlements

The discovery of Homo erectus fossils, such as Lampang man, is an example of archaic hominids.

2000 B.C.
The Earliest Known Center Of Copper And Bronze Production

The Ban Chiang sites are the earliest known center of copper and bronze production.

1782 A.D.
The Chakri Dynasty

The formation of the Chakri Dynasty, by Rama I takes place.

1868
The Birth Of Chulalongkorn

Queen Debsirindra gives birth to King Chulalongkorn on October 1.

How Businesses Can Celebrate Chulalongkorn Day / Piyamararaj Day

Local businesses in Thailand can observe Chulalongkorn Day by educating their staff and customers about the King’s legacy. Display historical information, organize small remembrance ceremonies, or support local cultural initiatives. Restaurants could feature traditional Thai dishes that were popular during his reign, while retail stores might highlight products from local artisans, reflecting the cultural pride associated with the day.

Chulalongkorn Day / Piyamararaj Day FAQs

When is Chulalongkorn Day / Piyamararaj Day?

Chulalongkorn Day / Piyamararaj Day 2026 falls on Friday, October 23, commemorating the passing of King Chulalongkorn, one of Thailand’s most revered monarchs.

What was King Chulalongkorn's greatest achievement?

King Chulalongkorn’s greatest achievement is widely considered the abolition of slavery in Thailand, a gradual process he initiated in 1874. This reform significantly improved the lives of countless people and modernized Thai society.

How is Chulalongkorn Day celebrated in Thailand?

Chulalongkorn Day is a public holiday in Thailand, marked by official ceremonies and remembrance events at statues and memorials of King Chulalongkorn. Many people visit the Royal Plaza in Bangkok to pay their respects.

Why is King Chulalongkorn so revered in Thailand?

King Chulalongkorn is revered for his visionary leadership, which steered Thailand through a challenging period of colonial expansion while implementing crucial reforms that modernized the nation and improved the lives of its citizens.

Chulalongkorn Day / Piyamararaj Day Activities

  1. Visit the Equestrian Statue

    Visit the Equestrian statue in the Royal Plaza, Dusit district. Show respect for the great monarch by placing flowery wreaths at the statue.

  2. List all the accomplishments of the king

    King Chulalongkorn has accomplished a long list of great deeds in his time. He brought European style to the region and kept a good relationship with all the great powers of his time. Try to list all the accomplishments of the king that made significant changes in society.

  3. Visit Thailand

    Thailand is the only Southeast Asian nation not colonized by Europeans. But the country still has a European touch in its architecture. Visit the country on this day to learn more about it.

5 Amazing Facts About Thailand That You Should Know

  1. The capital of Thailand

    “Krung Thep Mahanakhon Amon Rattanakosin Mahinthara Ayuthaya Mahadilok Phop Noppharat Ratchathani Burirom” is the official name of the capital city of Bangkok.

  2. A strict underwear policy

    It is a punishable offense to leave your residence without underwear in Thailand.

  3. The beloved monarchs

    Mother’s Day and Father’s Day are celebrated on the queen’s and king’s birthdays, respectively.

  4. A complex language

    The Thai language has 44 consonants, 32 vowels, and at least five tones — making it one of the hardest to learn.

  5. The unconquered

    Europeans never colonized Thailand.

Why We Love Chulalongkorn Day / Piyamararaj Day

  1. Abolished slavery

    King Chulalongkorn was responsible for abolishing slavery in Thailand. We love such powerful and inspiring actions, and we love to celebrate a day for such an eminent personality.

  2. Avoided colonization

    Due to the efforts of Chulalongkorn, Thailand was never fully colonized. His diplomacy is an effective tool in keeping the country safe.

  3. Kept good relations with other nations

    King Chulalongkorn traveled extensively to other nations and maintained good relationships. His travels outside the country taught him a lot. His actions are nothing short of heroic, and we love to dedicate a day to appreciating his achievements.

Chulalongkorn Day / Piyamararaj Day dates

Year Date Day
2025 October 23 Thursday
2026 October 23 Friday