The Honourable Order of Rama (Thai: เครื่องราชอิสริยาภรณ์อันมีศักดิ์รามาธิบดี; RTGS: Khrueang Ratcha-itsariyaphon An Mi Sak Ramathibodi) was established on 22 July 1918 (B.E.

2461) by King Rama VI of the Kingdom of Siam (now Thailand), to be bestowed onto those who have rendered special military services either in peace or in wartime.

The order consists of six classes: