Borommaracha or Borom Racha (Thai: บรมราชา|link=no, in Thai pronounced as /bɔː.rom.má.raː.t͡ɕʰaː / bɔː.rom raː.t͡ɕʰaː/; Pali: Paramarājā|link=no; "Supreme King"), or the extended version Borommarachathirat or Borom Rachathirat (Thai: บรมราชาธิราช|link=no, in Thai pronounced as /bɔː.rom.má.raː.t͡ɕʰaː.tʰí.râːt / bɔː.rom raː.t͡ɕʰaː.tʰí.râːt/; Pali: Paramarājādhirāja|link=no; "Supreme King of High kings"), was a Thai royal title, and may refer to: