They play in the North Wales Coast East Premier Division.

The club was formed after a few villagers met in the Golden Lion Public House.

Llandyrnog were crowned champions at their first attempt and promoted to the Sealink Welsh Alliance.

After a lengthy spell in this league Llandyrnog were relegated back to the Clwyd League Premier Division where they stayed until 2002/03 until manager John James was appointed and the club gained promotion back to the Welsh Alliance.

They stayed in the Cymru Alliance until the end of the 2008–09 season where they finished bottom of the table 20 points from safety.