| Election Name: | 1984 Brighton Borough Council election |
| Country: | East Sussex |
| Type: | parliamentary |
| Previous Election: | 1983 Brighton Borough Council election |
| Previous Year: | 1983 |
| Next Election: | 1986 Brighton Borough Council election |
| Next Year: | 1986 |
| Seats For Election: | 16 out of 48 seats to Brighton Borough Council |
| Majority Seats: | 25 |
| Party1: | Conservative Party (UK) |
| Last Election1: | 24 seats, 44.4% |
| Seats1: | 7 |
| Seats After1: | 23 |
| Seat Change1: | 1 |
| Popular Vote1: | 22,019 |
| Percentage1: | 42.3% |
| Swing1: | 1.9% |
| Party2: | Labour Party (UK) |
| Last Election2: | 20 seats, 34.1% |
| Seats2: | 8 |
| Seats After2: | 21 |
| Seat Change2: | 1 |
| Popular Vote2: | 20,372 |
| Percentage2: | 39.2% |
| Swing2: | 5.1% |
| Party3: | SDP-Liberal Alliance |
| Last Election3: | 4 seats, 22.5% |
| Seats3: | 1 |
| Seats After3: | 4 |
| Popular Vote3: | 9,273 |
| Percentage3: | 17.8% |
| Swing3: | 3.7% |
| Council control | |
| Posttitle: | Council control after election |
| Before Party: | No overall control |
| After Party: | No overall control |
The 1984 Brighton Borough Council election took place on 3 May 1984 to elect members of Brighton Borough Council in East Sussex, England.[1] This was on the same day as other local elections.