| Country: | Sudan |
| Date: | 27 May 1998 |
| Yes: | 10,472,888 |
| No: | 326,732 |
| Invalid: | 135,409 |
| Electorate: | 11,935,029 |
A constitutional referendum was held in Sudan on 27 May 1998. A new Constitution of Sudan was approved by 97% of voters, with turnout reported to be 92%.[1] It was signed into law on 30 June.[1]