It occurred at around 7.30am on Monday 3 February 2014, on Cornwall Road, near the Pump Rooms.
The collision involved a car and a 64-year-old Harrogate man, who was a pedestrian.
As a result of the incident, the pedestrian suffered cuts to his face and grazed arms. He was treated by paramedics near the scene.
The man driving the car stopped following the collision and briefly spoke with the injured man. However, he left the scene without leaving his details.
The only description of the car is that it is either blue or black. The driver is white, aged in his fifties and has a stocky build.
Traffic Constable Andy Macleod, of the Force’s Roads Policing Group, said: If you are the driver of the vehicle involved in the collision, I urge you to contact the police straight away as I need to speak to you regarding this incident.
I am also keen to hear from anyone who witnessed the collision and ask them to get in touch as soon as possible.
Anyone who can help officers to progress this investigation should contact Harrogate police on 101, select option 2 and ask for Andy Macleod. Alternatively, information can be emailed to Andy.firstname.lastname@example.org.
Please quote reference number 12140017992.