Due to conflicting findings in previous studies, it remains unclear whether individuals with sarcoidosis are at a higher relative risk of acute myocardial infarction. In this cohort study, individuals with sarcoidosis and matched general population comparators were followed for acute myocardial infarction in Swedish nationwide registers. A small (20%) risk increase associated with sarcoidosis was identified, which did not markedly vary by age at diagnosis, sex, treatment status around diagnosis, and time since diagnosis. The highest relative risk (1.4) was observed in individuals who received immunosuppressant treatment around the time of sarcoidosis diagnosis. Future studies should examine the clinical characteristics of acute myocardial infarction in these patients and investigate whether early diagnostic or preventive interventions might be beneficial for these patients.