| Kazusa-Ichinomiya Station | |
| Style: | JR East |
| Native Name: | 上総一ノ宮駅 |
| Native Name Lang: | ja |
| Address: | Ichinomiya 2640, Ichinomiya-machi, Chōsei-gun, Chiba-ken 299-4301 |
| Country: | Japan |
| Operator: | JR East |
| Line: | Sotobō Line |
| Distance: | from |
| Platforms: | 1 side + 1 island platform |
| Tracks: | 3 |
| Connections: | Bus stop |
| Status: | Staffed (Midori no Madoguchi) |
| Former: | Ichinomiya (until 1917) |
| Passengers: | 2976 daily |
| Pass Year: | FY2019 |
| Map Type: | Japan Chiba Prefecture#Japan |
| Map Dot Label: | Kazusa-Ichinomiya Station |
is a passenger railway station located in the town of Ichinomiya, Chiba Prefecture Japan, operated by the East Japan Railway Company (JR East).
Kazusa-Ichinomiya Station is served by the Sotobō Line, and lies 43km (27miles) from the starting point of the line at Chiba Station.
The station consists of a single island platform and a single side platform serving three tracks, connected to a white-washed station building by an footbridge. The station has a Midori no Madoguchi staffed ticket office.
Kazusa-Ichinomiya Station was opened on 17 April 1898 as on the Bōsō Railway. The line was further extended to by 13 December 1899. On 1 September 1907, the Bōsō Railway was nationalized and became part of the Japanese Government Railways, which was transformed into the Japan National Railways (JNR) after World War II. The station name was changed to the present name on 1 January 1917. Freight operations were discontinued on 1 July 1971. The station was absorbed into the JR East network upon the privatization of the Japan National Railways on 1 April 1987.
In fiscal year 2019, the station was used by an average of 2,976 passengers daily (boarding passengers only).[1]