The station resides in Miyazu City but is called 'Iwatakiguchi Station,' meaning the entrance to Iwataki-cho, since the station serves as a gateway to the old Iwataki-cho (the current Yosano-cho), which didn't have a train station.
駅は宮津市内にあるが、鉄道駅の無かった旧岩滝町（現・与謝野町）の玄関駅であるため、岩滝町への入り口という意味で「岩滝口駅」と名称がついている。