St Margaret's Church is a parish church in the village of Horsmonden, Kent, England. It is a Grade I listed building.
St Margaret's Church is set in a farmyard, some distance from Horsmonden.
The building is constructed of sandstone and roofed in Welsh slate, which replaced a former roof of clay tiles in the late 19th century. During the 18th century the roof was covered in wooden shingles.
The building of the current church was started around 1260, on the site of a former Norman building which dated back to around 1100. Henry de Grofhurst, rector from 1311 until his death in 1361, was mostly responsible for building St Margaret's Church. He is memorialised in a monumental brass in the centre of the chancel.
On the south wall is a memorial bust to the 19th century inventor, John Read, responsible for the round oast-house, the stomach pump and a tobacco enema.