Siua Taumalolo (born 8 July 1976 in Nukuʻalofa, Tonga) was a rugby union player for Bristol in the Guinness Premiership. Commonly referred to as Josh, he spent several years in Welsh rugby, playing for Ebbw Vale RFC before joining Bridgend RFC in 2000. He was a member of the Bridgend team which won the final Welsh Premier Division before the restructuring of Welsh rugby in 2003. After this restructuring, Taumololo played for Harlequins for a year, and following their relegation, moved to Sale Sharks before returning to play in the now semi-professional Welsh Premier Division with Neath RFC.