Bajrakitiyabha, Princess Rajasarini Siribajra, also known as Princess Bha, was a member of the Chakri dynasty of Thailand. She was the eldest child of King Vajiralongkorn, and the only one born to his first wife Princess Soamsawali. She was born during the reign of her grandfather, King Bhumibol Adulyadej, and was his and queen Sirikit's eldest grandchild.
