| Mimasaka Station | |
| Native Name: | 三間坂駅 |
| Native Name Lang: | ja |
| Symbol Location: | jp |
| Symbol: | jrk |
| Style: | JR Kyushu |
| Address: | Yamauchicho Oaza Mimasaka, Takeo-shi, Saga-ken 849-2303 |
| Country: | Japan |
| Coordinates: | 33.1948°N 129.9477°W |
| Operator: | JR Kyushu |
| Line: | Sasebo Line |
| Distance: | 21.5 km from |
| Platforms: | 2 side platforms |
| Tracks: | 2 + 1 siding + 1 through-track |
| Structure: | At grade |
| Accessible: | No – platforms linked by footbridge |
| Status: | Unstaffed |
| Passengers: | 308 daily |
| Pass Year: | FY2020 |
| Pass Rank: | 273rd (among JR Kyushu stations) |
| Map Type: | Japan Saga Prefecture#Japan |
| Map Dot Label: | Mimasaka Station |
| Mapframe: | yes |
| Mapframe-Zoom: | 17 |
is a passenger railway station located in the Yamauchi neighborhood of the city of Takeo, Saga Prefecture, Japan. It is operated by JR Kyushu.[1]
The station is served by the Sasebo Line and is located 21.5 km from the starting point of the line at . Only local services on the Sasebo Line stop at this station.[2]
The station consists of two side platforms serving two tracks (track 1 and track 3). Track 2 is a through-track which runs between the other two and a siding branches off track 1. The station building is a timber structure which used to house a ticket window but has become unstaffed and presently serves only as a waiting room. Access to the opposite side platform is by means of a footbridge.[3] [4]
The private Kyushu Railway had opened a track from to and Takeo (today) by 5 May 1895. In the next phase of expansion, the track was extended further west with Haiki opening as the new western terminus on 10 July 1897. Mimasaka was opened on the same day as an intermediate station on the new track. When the Kyushu Railway was nationalized on 1 July 1907, Japanese Government Railways (JGR) took over control of the station. On 12 October 1909, track from Tosu through Mimasaka and Haiki to Nagasaki was designated the Nagasaki Main Line. On 1 December 1934, another route was given the designation Nagasaki Main Line and the official starting point of the Sasebo Line was moved from Haiki to . As such Mimasaka now became part of the Sasebo Line. With the privatization of Japanese National Railways (JNR), the successor of JGR, on 1 April 1987, control of the station passed to JR Kyushu.
The station became unstaffed in 2016.[5]
In fiscal 2020, the station was used by an average of 308 passengers daily (boarding passengers only), and it ranked 273rd among the busiest stations of JR Kyushu.[6]