Prince Anusara Siroprasadh or Phra Chao Boromwongse Ther Phra Ong Chao Anusara Siriprasadh (RTGS: Anusorn Siriprasarth) () (21 February 1891 – 6 May 1900), was the Prince of Siam (later Thailand). He was a son of Chulalongkorn, King Rama V of Siam and a member of the Siamese royal family.

His mother was The Noble Consort (Chao Chom Manda) Mom Rajawongse Kesara Sanidvongse, daughter of Mom Chao Savasdi Sanidvongse. He had an elder full brother, Prince Isariyabhorn.

Prince Anusara Siriprasadh died in childhood on 6 May 1900, at the age of 9 years 3 months.

Ancestry +Ancestor of Prince Anusara Siriprasadh Prince Anusara Siriprasadh 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:Mom Rajawongse Kesara Sanidvongse Maternal Grandfather:Mom Chao Savasdi Sanidvongse Maternal Great-grandfather:Prince Nuam, the Prince Vongsadhirajsanid Maternal Great-grandmother:unknown Maternal Grandmother:unknown Maternal Great-grandfather:unknown Maternal Great-grandmother:unknown