| Country: | England |
| Coordinates: | 52.844°N -0.459°W |
| Official Name: | Keisby |
| Static Image: | Keisby, Lincolnshire - geograph.org.uk - 328278.jpg |
| Static Image Width: | 240px |
| Static Image Caption: | Manor Farm House, Keisby |
| Civil Parish: | Lenton, Keisby and Osgodby |
| Shire District: | South Kesteven |
| Shire County: | Lincolnshire |
| Region: | East Midlands |
| Constituency Westminster: | Grantham and Stamford |
| Post Town: | BOURNE |
| Postcode District: | PE10 |
| Postcode Area: | PE |
| Dial Code: | 01476 |
| Os Grid Reference: | TF038285 |
| London Distance Mi: | 90 |
| London Direction: | S |
Keisby is a hamlet in the civil parish of Lenton, Keisby and Osgodby, in the South Kesteven district, in Lincolnshire, England. It is situated 6miles north-west from Bourne and 9miles south-east from Grantham. In 1921 the parish had a population of 72.[1]
Keisby comes from an Old Norse term meaning "Kisi's farmstead or village".[2] The village is mentioned in the Domesday account,[3] and has had different spellings over the years, from Chisebi to Kisebi and Kysebi.[2]
The English surname Kisby (and variants) is believed to originate from Keisby.[4]
Keisby was formerly a township in the parish of Lavington,[5] in 1866 Keisby became a separate civil parish, on 1 April 1935 the parish was abolished to form "Lenton Keisby and Osgodby".[6]
Keisby is part of the Lenton, Keisby and Osgodby ecclesiastical parish, and The North Beltisloe Group of parishes in the Deanery of Beltisloe.[7] As of 2014 the incumbent is the Revd Mike Doyle.[7] There is no separate church, services taking place in the parish church at Lenton.