Hyperlipidemia is very common in general population and incidence has further increased in recent years. Evaluation of patient presenting with lipid disorders is essential to obtain a definite diagnosis to prevent complications, and apply the most appropriate treatment. An isolated elevation in triglyceride levels may be caused by a primary disorder of lipid metabolism like familial hypertriglyceridemia. It may also arise secondary to a number of conditions like diabetes mellitus, alcohol intake, hypothyroidism, drugs, infections and nephrotic syndrome. Herein, we describe a case of secondary hypertriglyceridemia leading to Nonalcoholic Steatohepatitis (NASH) in a young female which was attributed to Multiple Myeloma (MM). Significant reduction in triglyceride levels after starting anti-myeloma therapy established their relation. This is the first case of light chain myeloma causing severe secondary hypertriglyceridemia.