Princess Siribha Chudabhorn (Thai: สิริภาจุฑาภรณ์; Thai pronunciation: [sì.rì.pʰaː.tɕù.tʰaː.pʰɔːn]; RTGS: Siripha Chuthaphon; born 8 October 1982), commonly known as Princess Ribha (Thai: หริภา; IPA: [rì.pʰaː.]; RTGS: Ripha), is the eldest daughter of Princess Chulabhorn Walailak and .