The Yokkaichi Asunarou Railway (四日市あすなろう鉄道, Yokkaichi Asunarō Tetsudō) is a railway company in Yokkaichi, Mie, Japan. The company operates the Utsube Line and the Hachiōji Line in Yokkaichi. Both lines are 762 mm (2 ft 6 in) gauge railways. The company took over the control of the lines and started the operation on April 1, 2015. Until the day before, the lines were operated by Kintetsu Railway, a major private railway operator, as branches of the Kintetsu Nagoya Line.