Ahporn Phimohk Prasat is an open-sided, sala-style royal pavilion, which is located within the compound of the Grand Palace in Bangkok.

It is built on a section of the enclosing wall of Dusit Maha Prasat (fig.), and is considered such a highly appraised construction, that it was reproduced and sent to adorn the Thailand exhibits at the 1958 World Expo in Brussels.