1984 E3 Prijs Vlaanderen

{{Infobox cycling race report

| name = 1984 E3 Harelbeke

| image =

| image_caption =

| image_size =

| series =

| race_no =

| season_no =

| date = 24 March 1984

| stages = 1

| distance = 225{{cite web|url=http://www.bikeraceinfo.com/races/e3/e3-prijs-harelbeke.html|title=E3 Prijs Harelbeke (World Tour), Belgium|work=BikeRaceInfo|accessdate=2 December 2017}}

| unit = km

| time = 5h 13' 00"

| first = Bert Oosterbosch

| first_nat = NED

| first_team = {{UCI team code|PSC|1984}}

| second = Eddy Planckaert

| second_nat = BEL

| second_team = {{UCI team code|PSC|1984}}

| third = Leo van Vliet

| third_nat = NED

| third_team = {{UCI team code|KWA|1984}}

| previous = 1983

| next = 1985

}}

The 1984 E3 Harelbeke was the 27th edition of the E3 Harelbeke cycle race and was held on 24 March 1984. The race started and finished in Harelbeke. The race was won by Bert Oosterbosch of the Panasonic team.