| Election Name: | 1984 European Parliament election in Belgium |
| Country: | Belgium |
| Type: | parliamentary |
| Previous Election: | 1979 European Parliament election in Belgium |
| Previous Year: | 1979 |
| Next Election: | 1989 European Parliament election in Belgium |
| Next Year: | 1989 |
| Seats For Election: | 24 seats to the European Parliament |
| Election Date: | 17 June 1984 |
| Leader1: | Leo Tindemans |
| Party1: | Christian People's Party (Belgium) |
| Alliance1: | European People's Party |
| Last Election1: | 7 seats, 29.54% |
| Seats1: | 4 |
| Seat Change1: | 3 |
| Popular Vote1: | 1,132,682 |
| Percentage1: | 19.80% |
| Swing1: | 9.74% |
| Leader2: | Karel Van Miert |
| Party2: | Flemish Socialist Party |
| Alliance2: | Party of European Socialists |
| Last Election2: | 3 seats, 12.84% |
| Seats2: | 4 |
| Seat Change2: | 1 |
| Popular Vote2: | 979,702 |
| Percentage2: | 17.12% |
| Swing2: | 4.28% |
| Leader4: | Ernest Glinne |
| Party4: | Socialist Party (francophone Belgium) |
| Alliance4: | Party of European Socialists |
| Last Election4: | 4 seats, 10.58% |
| Seats4: | 5 |
| Seat Change4: | 1 |
| Popular Vote4: | 762,293 |
| Percentage4: | 13.32% |
| Swing4: | 2.74% |
| Leader5: | Daniel Ducarme |
| Party5: | Liberal Reformist Party (Belgium) |
| Alliance5: | Alliance of Liberals and Democrats for Europe Party |
| Last Election5: | 2 seats, 6.85% |
| Seats5: | 3 |
| Seat Change5: | 1 |
| Popular Vote5: | 540,610 |
| Percentage5: | 9.54% |
| Swing5: | 2.69% |
Elections to the European Parliament were held in Belgium on 17 June 1984. The Dutch-speaking electoral college elected 13 MEPs and the French-speaking electoral college elected 11 MEPs.