| Settlement Type: | urban-type settlement |
| Official Name: | Sayxun |
| Native Name: | Сайхун |
| Pushpin Map: | Uzbekistan |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Uzbekistan |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name: | Uzbekistan |
| Subdivision Name1: | Sirdaryo Region |
| Subdivision Type2: | District |
| Subdivision Name2: | Sayxunobod District |
| Established Title: | Urban-type settlement status |
| Established Date: | 1984 |
| Population As Of: | 2003 |
| Population Total: | 5439 |
| Timezone: | UZT |
| Utc Offset: | +5 |
| Coordinates: | 40.7089°N 68.8419°W |
Sayxun (uz|Sayxun/Сайхун, ru|Сайхун|Saykhun) is an urban-type settlement in Sirdaryo Region, Uzbekistan. It is the administrative center of Sayxunobod District.[1] The town population in 1989 was 4877 people.[2]