Lars Thomas Sivertsson (born 21 February 1965[1]) is a Swedish handball player and handball coach who was a part of the Swedish golden generation nicknamed the Bengan Boys.

Sivertsson began playing handball at his hometown club Halmstad HP IF and joined top league team HK Drott, where he won the Swedish Championship 4 times.

In 2000 he joined Spanish top league team BM Granollers for one season.

[1] In 1996 he was a member of the Swedish handball team which won the silver medal in the Olympic tournament.

[2] When Torbjörn Klingvall ceased to be the coach of the Swedish women's team, Sivertsson took over in cooperation with Helle Thomsen.