１９８７年の国鉄民営化に伴い、ＪＲ会津線を引き継いで会津鉄道が第３セクター鉄道として開業しました。この会津鉄道が１９９９年に独自に開設したのが、このあまや駅です。駅名の由来は近くにある地名が大戸町雨屋であるためですが、この駅のある場所は大戸町宮内と大戸町上雨屋にまたがっており、雨屋はやや離れた山の上になります。
あまやの由来は、会津盆地に長雨が続いたとき、弘法大師が雲が晴れるように天に向かって２本の矢を放ち、その矢が刺さった場所を上天矢、下天矢とされたという説、畑から出る石器を天から降ってきたと考えた説があるそうです。天矢はやがて天屋と書かれたが、河沼郡にも同じ地名があったため、寛文年間に今の雨屋に替えられたそうです。
Aizu Railway began operations as a voluntary sector railway in 1987, taking over the JR Aizu Line following the privatization of the Japanese National Railways. The company opened Amaya Station in 1999. While the station is named after the nearby locality of Amaya in Oto-machi, the station itself stands between the areas of Miyauchi and Kami-amaya in Oto-machi; the area known specifically as Amaya is located somewhat further away, up in the mountains.
There are various stories regarding the origin of the name "Amaya."
One suggests that during a period of prolonged rain in the Aizu Basin, Kobo Daishi shot two arrows toward the sky to clear the clouds, designating the spots where they landed as Kami-Amaya (Upper Sky-Arrow) and Shimo-Amaya (Lower Sky-Arrow). Another story posits that stone tools unearthed from fields were believed to have fallen from the heavens. Although the name was originally written using the characters for "Sky-Arrow" (天矢), it was changed to the current characters for "Rain-House" (雨屋) during the Kanbun era (1661–1673) to avoid confusion with a place of the same name in Kawanuma District.
