| Ōkyo | |
| Location: | Bach quadrangle, Mercury |
| Type: | Central-peak impact crater |
| Coordinates: | -70.05°N -74.66°W |
| Diameter: | 66 km |
| Eponym: | Maruyama Ōkyo |
Ōkyo is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 1985. It is named for the Japanese painter Maruyama Ōkyo, who lived from 1733 to 1795.[1]
To the southeast of Ōkyo is the crater Camões.