The HSE made almost €12m from hospital parking charges last year.
The €11.7m figure is slightly down compared to 2017, when €12.8m was earned at 33 of the country's public hospitals.
According to the Sunday Independent, parking fees at Dublin hospitals were the highest, with the Mater charging €15 per day.
University Hospital Waterford was featured on the list with the South East hospital making €1.2m visitors, Cork University Hospital made €2.6m the highest in the country, while Galway University Hospital made €1.4m.
In 2018, Health Minister Simon Harris ordered a review of car parking fees at Irish hospitals.