Princess Praves Vorasamai or Phra Chao Boromwongse Ther Phra Ong Chao Praves Vorasamai (RTGS: Prawet Worasamai) () (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.