Her Royal Highness Princess Sirivannavari Nariratana Rajakanya, a daughter of His Majesty King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua (Rama X) is known internationally as a professional fashion designer.

Born on Thursday, 8 January 1987, Her Royal Highness obtained her Bachelor’s degree, with first-class honors and a gold medal, in fashion design from the Creative Arts Department, in the Faculty of Fine and Applied Arts, at Chulalongkorn University. 

In September 2007, the Princess showed to the world her talent in fashion design at the Paris Fashion Week: Spring/Summer 2007, at the invitation of the House of Balmain. Her Royal Highness was inspired by the concept of traditional Thai design in the mixture of high-quality silk from the SUPPORT Foundation, together with traditional Thai techniques and modern Western fashion.

The Princess recently made a radiant appearance in a Kimono crafted from exquisite Thai silk as part of the “Thai Kimono Project.” This project was officially launched at the Royal Thai Embassy in Tokyo on 25 November 2025, the result of collaboration between the Department of International Trade Promotion, through the Thai Trade Center in Tokyo, the Sustainable Arts and Crafts Institute of Thailand (SACIT), and OMIYA Company from Japan.

The project builds on the Don Koi and Na Wa models, initiated by Her Royal Highness Princess Sirivannavari, to develop comprehensive eco-friendly textile production. It took over a year for Thai silk weavers to refine traditional techniques to meet the fabric qualities required for making Japanese kimonos and obis.

The Princess has played a vital role in developing and elevating Thai textiles and local handicrafts to make them better known on both the domestic and global stages. The World Intellectual Property Organization (WIPO) on 14 August 2025 presented Her Royal Highness with the prestigious “WIPO Award for Creativity Excellence.”

The award presentation was in recognition of Her Royal Highness’s creative ingenuity in intellectual property, fashion, and design, and her remarkable contributions to preserving Thai culture and tradition, as well as creating a sustainable future for local artisans and their communities.