The is a railway line operated by East Japan Railway Company (JR East) in western Tokyo, Japan. It links Tachikawa and the Chà «à  Line with the town of Okutama. Many Chà «à  Line trains operate via the à Âme Line to à Âme Station, providing a direct service to Tokyo Station.
The section between à Âme and Oku-Tama is now nicknamed as the "Tokyo Adventure Line (æÂ±äº¬ã¢ãÂÂãÂÂã³ãÂÂã£ã¼ã©ã¤ã³)".
Local trains stop at all stations. However, they rarely run along the entire à Âme Line, with services splitting at à Âme Station.
The à Âme Line, at times, runs through services along the Chà «à  Rapid, Itsukaichi, and Hachikà  lines. Supplemental trains during the peak season may also run along the Nambu Line. Trains that operate only on the à Âme Line have "à Âme-Itsukaichi Line" displayed at the front.
Before 15 March 2025, the à Âme Limited Express (ç¹æÂ¥ãÂÂãÂÂãÂÂ) was a limited express train service for commuters on the Chà «à  Rapid Line and à Âme Line. The train operated on weekdays only. Prior to 16 March 2019, this train operated as the à Âme Liner (éÂÂ梠ã©ã¤ãÂÂã¼).
Holiday Rapid Okutama services run on weekends from Tokyo.
Services on the à Âme Line are usually formed of E233-0 series 10-car / 6+4 car EMUs. However, while 209-1000 series trains usually only run on the Chuo Line (Rapid) between Tokyo and Takao stations, on rare occasions (such as a shortage of train sets due to an accident) they may also run on the Ome Line as far as Ome station. Due to the lack of passenger-operated door controls on these sets all doors open at each station on these sets.
The section between Tachikawa and à Âme was opened in 1894 by the à Âme Railway as a gauge line, extended 2 km as a freight-only section to Hinatawada the following year. Passenger services were extended to Hinatawada in 1898, and the line was converted to in 1908. A further freight-only section opened to Miyanohira in 1914, and to Futamatao in 1920. Passenger services were extended to Miyanohira in 1923, the same year the entire line was electrified at 1,200 V DC. The line was further extended to Mitake in 1929, when the company changed its name to the à Âme Electric Railway Co. and the voltage raised to 1,500 V DC in 1930. Passenger services were extended to Mitake in 1935.
The company was nationalized on 1 April 1944, the same year that the Tachikawa to Nagakami section was double-tracked.
The Okutama Electric Railway was constructing a line from Mitake to Hikawa (now Okutama) when it was nationalised, and the line opened on 1 July 1944, creating the present-day à Âme Line.
The Nakagami to Haijima section was double-tracked in 1946, and direct services to Tokyo commenced in 1949. The Haijima to Higashi-Ã Âme section was double-tracked between 1961 and 1962, CTC signalling was commissioned in 1971, and freight services ceased in 1998.
On 20 August 2016, station numbering was introduced to the à Âme Line, with stations being assigned station numbers between JC51 (Nishi-Tachikawa) and JC74 (Oku-Tama).
From the timetable revision on 18 March 2023, operation on the à Âme Line has been almost completely divided at à Âme Station, with very few trains operating along the entire length of the line.
In February 2015, JR East announced plans to introduce Green (first class) cars on Chuo Line (Rapid) and through-running Ome Line services from fiscal 2020. This will involve adding two bilevel Green cars to 10- and 6-car E233-0 series EMU sets, forming 12- and 8-car sets. Work is now undergoing to lengthen station platforms and depot facilities to handle the longer trains.