]; RTGS: Siriwanwari Narirat Ratchakanya; born 8 January 1987) is a Thai princess and the only daughter of King Vajiralongkorn by his former consort Sujarinee Vivacharawongse (commonly known as Yuvadhida Polpraserth).

Following her parents' divorce in 1996, her mother moved with her siblings to the United Kingdom; her father then ordered Sirivannavari's abduction and return to Thailand.

Her debut Paris collection was titled Presence of the Past, which drew on memories of her royal grandmother as well as giving a modern interpretation to traditional Thai costume.

[2] YouTube personality Wanchaleom Jamneanphol, known online as Mixy Bigmouth, was subsequently threatened with prosecution under Thailand's lèse-majesté laws after describing the dress as ugly.

King Maha Vajiralongkorn announced the appointment of his daughter in the latest round of military promotions that will be effective from 1 April 2023.