In the early stages of planning, the station's name was not decided upon, and the names 'Gileston' and 'St Athan' were used interchangeably. The name Gileston was not fixed until 1896. At some point in its later life, the station's nameboard read 'Gileston for St Athan'. The boards displayed this name until closing, but the station but was usually referred to just as Gileston.