斯利福德（Sleaford）是英格兰林肯郡的一个城镇和民政教区，位于波士顿以西16英里（26公里）。据2011年人口普查，斯利福德有人口17,671人。

Sleaford is a market town and civil parish in the North Kesteven district of Lincolnshire, a non-metropolitan county in the east of England. It is on the edge of the fertile Fenlands, about 11 miles (18 km) north-east of Grantham, 16 miles (26 km) west of Boston, and 17 miles (27 km) south of the city and county town of Lincoln. With an estimated resident population of 17,671 at the time of the 2011 Census, the town is the largest settlement in North Kesteven, and makes up roughly 15% of its total population. Bypassed by the A17 and the A15, it is connected to Lincoln, Newark, Peterborough and King's Lynn. Sleaford railway station is on the Nottingham to Skegness (via Grantham) and Peterborough to Lincoln Lines.