The 1984 Individual Speedway Junior European Championship was the eighth edition of the European motorcycle speedway Under-21 Championships. All participants under the age of 21. The title was won by Marvyn Cox. The meeting was blighted by the death of . During heat 13 his engine seized, causing him to fall and then he was hit from behind. The 19-year-old Swede suffered catastrophic brain injuries and died later in hospital.