Atagoyama Railway ("Atagoyama Tetsudo" in Japanese) was a railroad company that, before the war, managed a flat railway line that ran from Arashiyama Station (operated by Keifuku Electric Railway and located in present-day Ukyo Ward, Kyoto City, Kyoto Prefecture) to Kiyotaki Station, as well as a cable car line (funicular railway) that ran from Kiyotakigawa Station to Atago Station.
愛宕山鉄道（あたごやまてつどう）は、現在の京都府京都市右京区の嵐山駅(京福電気鉄道)から清滝駅までの普通鉄道路線（平坦線）と、清滝川駅から愛宕駅までのケーブルカー（鋼索鉄道）を戦前に運営していた鉄道事業者。