Obu

Known weekday departures: 261/day in the available timetable data · Known Sat & holiday departures: 261/day in the available timetable data

Earliest / latest departure in the available data (weekday): 5:39 / 24:22 (00:22 next day)

Busiest hour in the available data: 7:00–8:00 (16)

0:00 ─ 23:00

Figures are the departures known from the timetable data, not a count of today's actual service.

Timetable data as of 2 May 2026 (retrieved in spring/summer 2026).

The timetable data is incomplete for some or all lines at this station, so the weekday and Sat & holiday figures are departures in the available timetable data, not totals.

Lines where the timetable data is incomplete:

• Tokaido Main Line: only trains from timetables filed under other lines
• Taketoyo Line: no timetable data

• Tokaido Main Line: Kyowa ⇄ Aizuma

Ōbu Station is a Tōkaidō Main Line junction in Ōbu, Aichi Prefecture, operated by JR Central and located 346.5 kilometres from Tokyo Station; it is also the starting point of the Taketoyo Line. The station opened on 10 September 1887 as a new intermediate stop between Kamezaki and Ōdaka on the already-operating government railway running from Taketoyo through Nagoya to Nagahama, provided so that the east–west trunk line then under construction could join it; it became a branching station on 1 September 1888 when service from Hamamatsu reached here. The Taketoyo branch was formally separated and renamed Taketoyo Line in 1909. The second-generation station building dates from 1 September 1978, JR Central took over at privatisation in 1987, automated gates were installed in 1992, TOICA service began on 25 November 2006, and electrification of the Taketoyo Line through to Taketoyo was completed on 1 March 2015. Station numbers CA60 and CE00 were assigned in March 2018.

On the curving track east of the station the Taketoyo branch runs straight south while the Tōkaidō Main Line bends to the southeast — a layout that reveals the construction order: the Nagoya-to-Taketoyo line was completed first, with the Okazaki-direction trunk line stitched in later.