Manyabhadhorn

Princess Manyabhadhorn (Thai: มัณยาภาธร ; RTGS: Manyaphathon ; 22 September 1854- 26 October 1885) was a Princess of Siam (now Thailand). She was a member of Siamese royal family is a daughter of King Mongkut and Chao Chom Manda Chan and half-sister of King Chulalongkorn.

Her mother was Chao Chom Manda Chan Suksathit. She was the daughter of Suk Suksathit. She was a given full name by her father as Phra Chao Borom Wong Ther Phra Ong Chao Manyabhadhorn(Thai: พระเจ้าบรมวงศ์เธอ พระองค์เจ้ามัณยาภาธร).

Princess Manyabhadhorn died 26 October 1885 at the age 30.