Princess Praves Vorasamai or Phra Chao Boromwongse Ther Phra Ong Chao Praves Vorasamai (RTGS: Prawet Worasamai) (Thai: พระเจ้าบรมวงศ์เธอ พระองค์เจ้าประเวศวรสมัย) (2 December 1879 – 31 May 1944), was a Princess of Siam (later Thailand. She was a member of Siamese royal family. She is a daughter of Chulalongkorn, King Rama V of Siam.
Her mother was Tabtim Rojanadis, daughter of Phraya Abbhantrikamas and Bang Rojanadis, elder sister of Chao Chom Manda Sae. She had a full elder brother and a younger brother;
- Prince Chirapravati Voradej, the Prince of Nakhon Chaisi (7 November 1876 – 4 February 1913)
- Prince Vudhijaya Chalermlabha, the Prince Singhavikrom Kriangkrai (5 December 1883 – 18 October 1947)
Princess Praves Vorasamai died on 31 May 1944, at the age of 64.
Ancestry
| Princess Praves Vorasamai | Father: Chulalongkorn, King Rama V of Siam |
Paternal Grandfather: Mongkut, King Rama IV of Siam |
Paternal Great-grandfather: Buddha Loetla Nabhalai, King Rama II of Siam |
| Paternal Great-grandmother: Queen Sri Suriyendra | |||
| Paternal Grandmother: Queen Debsirindra |
Paternal Great-grandfather: Prince Sirivongse, the Prince Matayabidaksa | ||
| Paternal Great-grandmother: Mom Noi Sirivongs na Ayudhya | |||
| Mother: Chao Chom Manda Tabtim Rojanadis |
Maternal Grandfather: Phraya Abbhantrikamas |
Maternal Great-grandfather: unknown | |
| Maternal Great-grandmother: unknown | |||
| Maternal Grandmother: Bang Rojanadis |
Maternal Great-grandfather: unknown | ||
| Maternal Great-grandmother: unknown |
