The Keiō Dōbutsuen line (京王動物園線, Keiō Dōbutsuen-sen) is a railway line in Hino, Tokyo, Japan, owned by the Keio Corporation, which connects Takahatafudō on the Keiō Main Line and Tama-Dōbutsukōen (for Tama Zoo and the Keio Rail-Land railway amusement park).

It is a single track of 1,372 mm (4 ft 6 in) gauge.

The line is electrified at 1,500 V DC.

[1] "Wanman" one-person operation started in 2000.

[2] The line experienced a drop in ridership numbers following the closure of the Tama Tech theme park in 2009.