The registration plates of cars in Norway are maintained by the Norwegian Ministry of Transport and Communications. As in most countries, cars are identified only by number plates read visually. Each plate is a legal document that both identifies the vehicle and permits its use, and shall be returned to the registration authority when the vehicle is no longer in use.

A vanity plate or personalized plate ; prestige plate, private number plate, cherished plate or personalised registration ; personalised plate or custom plate is a special type of vehicle registration plate on an automobile or other vehicle. The owner of the vehicle pays extra money to have their own choice of numbers or letters, usually portraying a recognizable phrase, slogan, or abbreviation, on their plate. Sales of vanity plates are often a significant source of revenue for North American provincial and state licensing agencies. In some jurisdictions, such as British Columbia, vanity plates have a different color scheme and design.