| Static Image Name: | Syleham-g2.jpg |
| Static Image Caption: | Syleham St Margaret |
| Official Name: | Syleham |
| Country: | England |
| Region: | East of England |
| Coordinates: | 52.35°N 1.24°W |
| Population: | 180 |
| Population Ref: | (2011)[1] |
| Post Town: | EYE |
| Postcode Area: | IP |
| Postcode District: | IP21 |
| Dial Code: | 01379 |
| Shire County: | Suffolk |
| Shire District: | Mid Suffolk |
| Hide Services: | Yes |
Syleham is a small parish, next to the River Waveney in Suffolk, England, about six miles east of Diss.
Its church, St Margaret, is one of 38 existing round-tower churches in Suffolk. The windmill was one of the casualties of the Great Storm of 1987.