2014–15 Welsh Football League Division One

This league known as the Nathanielcars.co.uk Welsh League Division One for sponsorship reasons, is a football league in Wales. This is the top division of football in South Wales and the second tier of the Welsh Football League.

The reigning champions are Monmouth Town. However, they were not promoted to the Welsh Premier League as they did not meet the necessary ground criteria.

Teams promoted from 2013–14 Welsh Football League Division Two

 * Cardiff Metropolitan University - Champions
 * Briton Ferry Llansawel - 2nd Place
 * Garden Village - 3rd Place

Teams relegated from 2013–14 Welsh Premier League

 * Afan Lido