The Club has won a number of honours over the years, including the locally famous Invincibles of the 1961–62 season captained by Bas Thomas.

Playing out of Abernant Park in red and black jerseys, the Club has one senior teams and six junior sides.

According to Gwilym R Davies, Will Jones, son of the Landlord of the Angel Hotel, introduced the game to the village in 1880.

The Golden Period (1919-1922) saw Glynneath finish with the following record: Played 129, Won 86, Drawn 27, Lost 16.

The club sought permission for the use of Abernant Park and the opportunity to buy new balls and 17 jerseys at a cost of £11-13-6 plus 4 coupons each.

New rules were also introduced, such as, any Committee member absent four times from meetings without reasonable excuse would be automatically expelled.

It was decided in 1959 that Glynneath RFC should seek out a permanent clubhouse, as they had previously been using The Rock Hotel.

The team, captained by Bas Thomas, played a total of 41 games in that season, winning 37 and drawing just 4 fixtures.

However, a black day in the club's history occurred in 1977 when the dance hall was completely gutted by a fire.

Glynneath RFC were accepted as members of the Welsh Brewers West Wales Championship League in 1987-88, competing in Section F. They finished their league campaign unbeaten and set two new records - WWWRU Cup for most tries (105) and the Eurof Davies Shield for most points (564).

They went on to win Section E in the following season, and also enjoyed a successful run in the Schweppes Cup beating Maesteg en route to their 5th Round exit against Bridgend.

During the centenary season of 1989-90, Glynneath RFC finished as Runners Up of Section D ensuring their constant rise up the leagues.