Bonesgate Stream is a brook in Chessington in Kingston upon Thames in London and Epsom and Ewell in Surrey. It is a tributary of the Hogsmill River, which is a tributary of the River Thames.
One arm rises in Horton Country Park, the other in Chessington Wood, joining at TQ 18362 62850 east of Chessington Golf Course. The brook then flows north-east through Castle Hill and Bonesgate Open Space Local Nature Reserves to Filby Road. it continues north-east to join the Hogsmill at Tolworth Court Bridge at the junction of Kingston Road and Worcester Park Road.
Coordinates: 51°21′09″N 0°18′06″W / 51.352408°N 0.30167521°W