This team was called the Grasshoppers and was formed by members of the local male voice choir.

After the First World War the club played under the name 'The All Blacks' and achieved some local success including winning the Cyrus Davies Cup on two occasions.

Like most Welsh clubs, Llanhilleth disbanded during the Second World War but reformed under its present name on 4 April 1946, and that season won the Cyrus Davies Cup for a third time.

With enough rations collected team residents travelled to Cardiff to buy a new strip, but when they arrived at the Welsh Sports shop in the capital there was only one full rugby jersey kit available, a Cardiff RFC kit that had not been collected.

The kit was bought and similar to Llanharan RFC the team now wear Black and Blue, the colours of Cardiff.