Maesteg Harlequins RFC is a rugby union team from the town of Maesteg, Wales. The Maesteg Harlequins were founded in 1898, their first captain being Tom Hopkins. They have reformed under different guises but for the majority of their 113 years they have been known as Maesteg Harlequins. The club is a member of the Welsh Rugby Union having been made full members in 1987.
The club badge consists of a central shield surrounded by an elaborate bronze border. The shield contains the traditional image of Maesteg a burning castle (Castell Coch which was sited in the nearby village of Llangynwyd and home to the ruling earls of the area). The burning castle shows the historical rejection of Norman rule by local Welsh people. Above the castle is the traditional emblem of Wales a red dragon rampant. The words 'Tir Iarll' (Earl's Land) lies below the shield on a scroll and this was the name of the area in the Middle Ages.