| Official Name: | Old Sleaford |
| Civil Parish: | Sleaford |
| Country: | England |
| Region: | East Midlands |
| Coordinates: | 52.9894°N -0.4007°W |
| Shire District: | North Kesteven |
| Shire County: | Lincolnshire |
| Hide Services: | Yes |
| Static Image: | The Carre Arms Hotel, Sleaford - geograph.org.uk - 4768196.jpg |
| Static Image Caption: | The Carre Arms Hotel |
Old Sleaford is a former settlement and ancient parish, now in the civil parish of Sleaford, in the North Kesteven district, in the county of Lincolnshire, England. It was south-east of the market town of New Sleaford (generally called Sleaford).[1] In 1951 the parish had a population of 820.[2] On 1 April 1974 the parish was abolished to form Sleaford.[3]