Police were called at approximately 18:00hrs on Monday, 30 October to reports of a road traffic collision involving a car and a motorcycle in Grosvenor Road, near the junction with Aylesford Street, SW1.
Officers and London Ambulance Service attended the scene and the rider of the motorcycle, a man believed aged in his 30s, was pronounced dead the scene.
The car stopped at the scene; no arrests have been made.
Road closures remain in place and motorists are advised to avoid the area.
Enquiries into circumstances continue.