Miyaguchi Station (宮口駅, Miyaguchi-eki) is a railway station in Hamana-ku, Hamamatsu, Shizuoka Prefecture, Japan, operated by the third sector Tenryū Hamanako Railroad.

Miyaguchi Station is served by the Tenryū Hamanako Line, and is located 32.3 kilometers from the starting point of the line at Kakegawa Station.

The station building and platform are protected as Registered Tangible Cultural Properties of Japan since 2011.

On March 15, 1987, the station came under the control of the Tenryū Hamanako Line.

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