Princess Oradaya Debkanya ( ; ; 18 September 1859 â 4 April 1906) was a princess of Siam (later Thailand). She was a member of the Siamese royal family and was a daughter of King Mongkut and Consort Bua.
Her mother was Chao Chom Manda Bua Na Nakhon (a daughter of Phraya Nakhon Noi Na Nakhon). She was given the full name Phra Chao Borom Wong Ther Phra Ong Chao Oradaya Debkanya () by her father.
Princess Oradaya Debkanya died on 4 April 1906 at the age of 46.