The disclosure relates to a hydrogen production apparatus. The hydrogen production apparatus (10) includes a water electrolysis unit (98), a storage unit (100), a supply unit (102), and an electricalequipment unit (96). A first ventilation flow path (182) causes air to flow through an electrical equipment chamber (104) and a storage chamber, which is formed by at least one of the water electrolysis chamber (132), a storage chamber (140), and a supply chamber (152). A second ventilation flow path (184) causes air to flow through at least one of the water electrolysis chamber (132), the storagechamber (140), and the supply chamber (152) that is not the storage chamber. The electrical equipment chamber (104) is positioned farthest upstream in the first ventilation flow path (182), and the first ventilation flow path (184) and the second ventilation flow path (184) are separated from each other.