Introduction: Hepatic steatosis is a leading cause of chronic liver disease, and it is most commonly attributed to nonalcoholic fatty liver disease (NAFLD). The interplay between hepatic steatosis and the development of liver disease following the Fontan procedure is not well understood. This study examined the prevalence and associations of hepatic steatosis in patients with a Fontan circulation. Methods and Results: This was a single-center retrospective study of 95 patients with a Fontan circulation who had a liver magnetic resonance imaging (MRI) performed between 2012 and 2019. Average age at MRI was 21.5 ± 8.5 years. Percent liver fat signal was determined using magnetic resonance chemical shift-encoded proton density fat fraction imaging. Hepatic steatosis was defined as liver fat greater than or equal to 5%; this was present in 10.5% of the population. The presence of hepatic steatosis was associated with higher body mass index (BMI) (29 ± 4 vs. 24 ± 6 kg/m 2 , p = 0.01), a higher frequency of obesity (50 vs. 12%, p = 0.02), lower high density lipoprotein (HDL) cholesterol (35 ± 9 vs. 43 ± 14 mg/dL, p = 0.05), and greater subcutaneous fat (2.6 ± 0.7 vs. 1.8 ± 1.0 cm, p = 0.04). Percent liver fat was positively associated with AST, triglyceride, and alkaline phosphatase levels. There was no association between hepatic steatosis and cardiovascular imaging or hemodynamic variables. Hepatic steatosis was not associated with the development of the composite outcome of: death, heart transplant, or escalation of diuretics (10 vs. 25%, p = 0.44). Conclusions: Risk factors for hepatic steatosis in patients with Fontan circulation are similar to the general population: obesity and dyslipidemia.