Hypertriglyceridemia is a known cause of 2%-7% of cases of acute pancreatitis. Although there are numerous potential causes, the use of atypical antipsychotics has been linked to elevated triglycerides and pancreatitis. Here, we present the case of a 42-year-old male patient with a diagnosis of schizoaffective disorder who presented to our hospital with acute pancreatitis due to hypertriglyceridemia, which was exacerbated after he was started on quetiapine.