Sione Timani (born 3 September 1984) is a Tongan rugby union football player at Lock for Tarbes, before joining Colomiers at the start of the 2016/17 season. He is and .
Timani played for Carmarthen Quins between 2009 and 2011, before signing for the Scarlets. After 3 seasons there, he moved to play for Tarbes in the Pro D2. On 23 February 2016, it was confirmed that Timani would join Colomiers. He has 7 caps for Tonga. Sione has two brothers playing professional rugby in Australia, Sitaleki and Lopeti.