Miyaji Station is a railway station on the Hohi Main Line operated by JR Kyushu in Aso, Kumamoto, Japan.

The Hōhi Main Line is a railway line in Kyushu, southern Japan, operated by the Kyushu Railway Company. It connects the west and east coasts of the island. The line originates at Kumamoto Station in Kumamoto and ends at terminal of Ōita Station in Ōita.