Surname จริยารัตน์ (Jarirat 
, จริยารัตน์ , Chariyarat ) , globally, is a very rare last name. The last name จริยารัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, จริยารัตน์ is the forename as well as the last name.