Chinbrook is a suburb in south east London; it is located 14 km (8.7 mi) southeast of Charing Cross and is in the southeast corner of the London Borough of Lewisham on its boundary with the London Borough of Bromley. Chinbrook lies between Grove Park and Mottingham, approximately half a mile east of Grove Park centre and is generally considered part of Grove Park.
Most of Chinbrook including the main crossroads falls within the London Borough of Lewisham and under the postcode district SE12, although immediately northeast from the crossroads is the border with the London Borough of Bromley and the SE9 postcode district. The River Quaggy flows northward through Chinbrook and forms part of the borough and postal boundaries there.
The name Chinbrook is derived from "Chin Brook" which was an alternative name for the Quaggy River at the turn of the twentieth century. The place Kidbrooke is also on the River Quaggy and its name is also derived from an alternative name for the river, "Kyd Brook". Chinbrook is occasionally mispronounced and misspelled "Chimbrook".
The main crossroads has traffic lights and several bus stops close by. The main road, the B226, passes East to West through the hamlet; westward being Chinbrook Road toward Grove Park joining Baring Road (A2212), and northeast, Grove Park Road toward Mottingham. Marvels Lane is a smaller road passing north to south; southward it joins Dunkery Road, which goes eastward also towards Mottingham; northward Marvels Lane joins Burnt Ash Hill which goes through the northern part of Grove Park towards Lee. There are footpaths in the area mostly running north to south along the green area following the River Quaggy, and some form part of the Green Chain Walk and Capital Ring.