| Number: | 663 |
| Organ: | SC |
| Date: | 14 August |
| Year: | 1990 |
| Meeting: | 2,936 |
| Code: | S/RES/663 |
| Document: | https://undocs.org/S/RES/663(1990) |
| For: | 15 |
| Abstention: | 0 |
| Against: | 0 |
| Subject: | Admission of new Members to the UN: Liechtenstein |
| Result: | Adopted |
United Nations Security Council resolution 663, adopted unanimously on 14 August 1990, after examining the application of the Principality of Liechtenstein for membership in the United Nations, the Council recommended to the General Assembly that Liechtenstein be admitted.[1]