Knowl Green is a hamlet in the civil parish of Belchamp St Paul and the Braintree district of Essex, England.

[2] An arm of Belchamp Brook, a tributary of the River Stour, rises at the north of Knowl Green and flows by the hamlet.

[6] At the west of the hamlet on Belchamp Road are two conjoined two-storey 18th-century cottages, timber-framed, with brick corners and flint infill.

[7] At the east of the hamlet at the north side of Gage's Road is a 17th-century timber-framed thatch-roofed cottage.

[9] Near this cottage, and on Gage's Road, is The Cherry Tree Inn, timber-framed and plastered, and with gable dormers, dating to the late 17th century, with a 20th-century extension.