Dorrington is a village and civil parish in the North Kesteven district of Lincolnshire, England. It is situated both south from Digby and north from Ruskington. It is to the east of the north-south B1188, which lies just within the parish boundaries. The nearest town is Sleaford, approximately to the south.
In the 2001 census, the parish had a population of 340.
Dorrington Grade I listed Anglican church is dedicated to St James and St John. It is mainly in Decorated style. On the sides of the east window are ogee canopied niches. The church tower previously held a spire. On the exterior of the east window is a sculpture of the Last Judgment. The church is situated on the B1188 approximately north-west from the village centre, overlooking the village.
Frank Whittle lodged at a house in the village while developing the jet engine at RAF Cranwell; the remains of this house lie near the church. In the village are the remains of a Grade II listed Medieval ashlar cross.