Provided are an electrostatic spray nozzle and an electrostatic spray apparatus which can prevent the occurrence of defects caused by the replacement of components and reduce the number of components that are unnecessarily replaced. An electrostatic spray nozzle (2) according to the present embodiment, which is for spraying a charged liquid, is characterized by being provided with: a nozzle body (21) for spraying a liquid; an annular electrode (22) disposed around the liquid sprayed from said nozzle body (21) and having an axial length direction along the spray direction of the liquid; an annular waterproofing member (23) in which said electrode (22) is embedded and which insulates and waterproofs said electrode (22); a connection terminal (222) protruding from the electrode (22) so that a tip part thereof is exposed to the outside of the waterproofing member (23); and a holding member (24) which has insulative and waterproofing properties, is mounted on the nozzle body (21), and holds the waterproofing membe