Stian Grimseth (born 24 July 1972) is a Norwegian former weightlifter from Naustdal.

[1] Grimseth won twelve consecutive gold medals at the Norwegian Championship from 1993 to 2004, and two additional national gold medals in 2007 and 2008.

[3] In September 2000, Grimseth tested positive for the banned substance nandrolone and missed the 2000 Sydney Olympics.

[5] Analyses showed that the substance came from the supplement Ribose and Grimseth filed a lawsuit against the manufacturer Universal Nutrition in 2002 that was settled four years later.

This biographical article relating to weightlifting in Norway is a stub.