| Praves Vorasamai | |
| Full Name: | Praves Vorasamai |
| House: | Chakri dynasty |
| Mother: | Chao Chom Manda Tabtim Rojanadis |
| Birth Date: | 2 December 1879 |
| Birth Place: | Grand Palace Bangkok, Siam |
| Death Place: | Bangkok, Siam |
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;
Princess Praves Vorasamai died on 31 May 1944, at the age of 64.
| 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-grandfother: unknown | ||
| Maternal Great-grandmother: unknown |