Nagato-Oi

Weekday departures: 16/day · Sat & holiday departures: 16/day

First / last departure (weekday): 6:28 / 20:39

Busiest hour: 6:00–7:00 (2)

0:00 ─ 23:00

Figures are typical departures in the timetable data, not a live service count.

Timetable data as of 2 May 2026.

• San'in Main Line: Nago ⇄ Koshigahama

Nagato-Ōi Station opened on 24 April 1929 in Ōi, present-day Hagi, Yamaguchi Prefecture, when the Japanese Government Railways Mine Line was extended between Higashi-Hagi and Nago, handling passengers and freight from the outset. The relevant section was absorbed into the San'in Main Line on 24 February 1933. Freight ended on 1 February 1963 and parcel handling on 1 February 1984. The station was destaffed on 14 March 1985 and passed to JR West at JNR privatisation on 1 April 1987. The wooden station building survives. Two opposed side platforms with a passing loop are connected by a footbridge, and a rainfall gauge is installed; slope failures closed the Nago–Nagato-Ōi section from 31 August 1980, with a further collapse in October, until repairs were completed on 5 March 1981, and heavy rain on 28 July 2013 suspended services through the station until 4 August.

For years the wooden station building doubled as the "Kaneko" barbershop, and a simple-contract ticket window inside was closed every Monday when the barbershop took its weekly rest.