| Election Name: | 1990 Orkney Islands Council election |
| Country: | Scotland |
| Flag Image: | 2007 Flag of Orkney.svg |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1986 Orkney Islands Council election |
| Previous Year: | 1986 |
| Next Election: | 1994 Orkney Islands Council election |
| Next Year: | 1994 |
| Seats For Election: | All 24 seats to Orkney Islands Council |
| Majority Seats: | 12 |
| Party1: | Independents |
| Leader1: | Edwin Eunson |
| Leaders Seat1: | Kirkwall Broadsands |
| Last Election1: | 23 |
| Seats1: | 23 |
| Seat Change1: | 0 |
| Popular Vote1: | 5,791 |
| Percentage1: | 97.6% |
| Swing1: | 5.4pp |
| Party2: | Orkney Movement |
| Leader2: | Spencer Rosie |
| Leaders Seat2: | Kirkwall Weyland |
| Last Election2: | 1 |
| Seats2: | 1 |
| Seat Change2: | 0 |
| Popular Vote2: | 31 |
| Percentage2: | 0.5% |
| Swing2: | 5.7pp |
| Map Size: | 330px |
| Council Convener | |
| Posttitle: | Council Convener after election |
| Before Election: | Edwin Eunson |
| Before Party: | Independent (politician) |
| After Election: | Jackie Tait |
| After Party: | Independent (politician) |
The 1990 Orkney Islands Council election, the sixth election to Orkney Islands Council, was held on 3 May 1990 as part of the wider 1990 Scottish regional elections. The election saw the Independents take all save one of the seats on the council, securing them an overall majority.